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Electrical Engineering

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Parent Category: Engineering
Electrical engineering is a field of engineering that deals with the study and application of electricity, electronics and electromagnetism.

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Engineering technicians use the principles and theories of science, engineering, and mathematics to solve technical problems in a variety of engineering fields. Engineering technicians generally have 2 year associates degrees. A lot of techs just install or help engineers with the hands-on start-up…
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ERMS = 0.707 times Epeak = .707 times 17 volts = 12 volts RMS Erms = Epeak / Sqrt (2)(Note I'll be using different notation so, E = V) The above is derived from using. v = VMsin ωt ...... Eq1Where ω = 2πf (angular frequency) & VM is amplitude & π (pi radians) and VRMS = √[1/2π ʃ2…
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Answer for USA, Canada and countries running a 60 Hz power supply service. AC [armored cable] and MC [metal-clad cable] are "filled to the max" because they are manufactured [like everything else] under totally controlled conditions to just meet the mechanical requirements of production stand…
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i had a 1983 ford ranger 4x4 4spd, best truck i ever owned. from past experience I've found if you have the will there's a way. I've seen 8 cylinder v-8's incorporated into the same truck.
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Cable Select allows for the faster installation of additional or replacement drives. It does this by allowing the position on the cable itself to determine whether it acts as the Master or the Slave drive on an IDE channel. Thus when replacing a drive or adding a new one, the setting of the other dr…
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The easiest method today is by using a clamp meter. It "clamps" around a single conductor and measures the magnetic field (you can't get a reading by clamping around a regular appliance cord, as both conductors will cancel each other out).
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In an integrated circuit, electronic components such as resistors, capacitors, diodes, and transistors are formed directly onto the surface of a silicon crystal. The process of manufacturing an integrated circuit will make more sense if one first understands some of the basics of how these component…
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p0023 camshaft position actuator b-bank2 circuit malfunction this is the response per my autoxray 2500 scanner
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The simplest answer is that the electric utility uses a transformer across 2 of the 3 hot leads to develop a single hot lead with an earth reference. What follows below is frequently edited by both amateurs and professionals, with mixed results. Wikipedia is a better source of more detailed informat…
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Answer A zener diode, a transistor, a rectifier diode, and a few resistors. A 10.5V zener diode will conduct until the voltage across it drops to below 10.5. If the relay is small enough, a zener diode is all you need. However, more than likely the current draw of the coil would burn the zener ou…
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There are tons of kinds of drives. Floppy Disk Drives, CD-ROM drives, PATA Hard drives, zip drives, flash drives, DVD drives, SATA hard drives.... The list could go on and on and on...
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TTL Logic To know about the advantages of TTL logic family, one should have a basic idea about RTL, DTL etc. Diode logic (DL) uses diodes to implement logical functions like AND and OR. But the disadvantage is that it can not perform NOT operation. As AND and OR are not complete functions by them…
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In a very general way, it can be said, that electronic things work, by the successful manipulation of the flow of electrons, to achieve a desired result. Electronics is the precise control of electricity to benefit us in numerous way, such as in the use of television, cell phones, digital cameras, …
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Step by step: 1. remove the piece that goes directly on top of the steering column.. this is held by clips, no screws 2. remove the one screw that holds the dash piece that goes BELOW the steering column.. this can now drop down by pulling it - the rest is clips. 3. remove the 3 screws that are v…
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Hire an electrician. Meter feeds are usually unfused. Any mistakes will cause a nasty fire, and draw the ire of the power company, the fire department, and your local house inspectors. You do not want to make a mistake on a 220V unfused line.
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Although an early form of battery may have been used in antiquity, the modern development of batteries started with the Voltaic pile, invented by the Italian physicist Alessandro Volta in 1800. The widespread use of batteries has created many environmental concerns, such as toxic metal pollution.Man…
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There are several ways. The safest is to have an electrician install a transfer switch. This allows you to connect a portable generator to its 4 prong outlet and prevents city power from entering the house and generator. You basically have a manual switch to decide if you want generator power or cit…
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Answer You might want to look a little closer at this. Because you said it was a farm, I have the suspicion you're looking at 220v motor circuits. 220v motor circuits, like 220v water heater circuits, do NOT have neutrals. Both sides of the line are hot, and the bare wire is ground like it's su…
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2.3L replacement The only replacement for your 2.3 is another 2.3 or a 2.6 out of a '88-91 Trooper, '89-94 Amigo, '88-95 Pup, or '91-96 Rodeo. information has been edited because the original poster has no clue what they are talking about.
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On a 12 volt system the 80 watts draws 6.7 amp and the 120 watts draws 10 amps.
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The power required by the appliance is directly proportional to the current,voltage, power factor. If the power factor is low, more current is required to supply the rated power of the appliance hence the ohmic losses increase. Therefore the efficiency decreases and the voltage regulation increases …
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Yes. It is doing more work at higher speeds and therefore is using more energy.
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jag seat same problem I have a broken plastic gear in my seat motor also.. seems silly to buy an entire motor for 170 dollars when a ten cent gear is all i need. where do you get these things..??Have just stripped my 1991 Jeep Cherokee seat motor assembly, because it has the same problem.There are …
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the work is easy but needs some time. carfully remove the twitters covers from both sides. then unscrew the top plate on ur dash alowing access to the lighting dash screen itself. un screw the lighing screen, there should be a screw to the right of the screen next to the right tweeter. on getting th…
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Let's retool this one. Watts is volts times amps. Check. Amps produce heat and not the volts. Now hold on just a minute there, partner. Heat is power. Power is watts. It's volts times amps. Power = Watts = Heat. So "amps produce heat and not the volts" is misleading. Amps and volts together produce …
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Answers for USA, Canada and countries using similar 60Hz mains supplies Assuming you are talking about house or business wiring, no, you need the third wire. (LIFE SAFETY WARNING! [disclaimer] Electricity is dangerous! You can be injured or killed! Improper installations can cause fire, injury a…
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my thinking is it just cranksbut no start, when you put power to this wire the should be clicking sound near trottle body if click is heard the leave power on it it should start but if not hot when key is off will cut off with key from battery you have to disconnect the hot wire to shut engin offfor…
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National Mean Annual Salary: $66320 National Median Hourly Wage: $31.89 Actually, My Dad is an Electrical Engineer, and he makes $164,000 a year!  Answer Electrical Engineers design, develop, test, plan,and improve electrical equipment.Engineers should be creative, curious, logical, and det…
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No, The voltage will not change. The neutral is basically a ground and is used in conjunction with the phases to create another voltage and act as the return line in an electrical system. "Depending on the system that you have". If you have a 480 volt and used a neutral with it you would have 240 or…
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Short answer: YES if the problem really is in your home! Longer answer: call your electric company and ask for advice. The problem may be a transformer going bad, which the electricity service provider will take care of. Get more information before jumping to conclusions. <><><>…
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Answer http://electronics.howstuffworks.com/telephone.htm For other information concerning history, components and internal workings of a small business telephone systems check this Wikipedia entry: http://en.wikipedia.org/wiki/Private_branch_exchange
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Unfortunately, this is probably not practical. Though electric clothes dryers are made as wholly 240 volt 50Hz units - for use in Europe, Asia and elsewhere in the world - all the residential dryers I have been exposed to in the US are hybrid 120/240 volt units. By this I mean that, though the hea…
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Homes are single phase. You can have 220VAC in a home, although not all homes have 220VAC. In the United States and Canada, the 240VAC is "center-tapped_ to provide 2 120 Volt halves. It doesn't matter which half is used on a 120 volt line, just so long as the house is APPROXIMATELY balanced between…
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Look very closely at the breaker, it could be in the tripped position. Compare the position of the handle in relationship with the other breaker handles. If it seems a little bit out of align move the handle to the full off position. You should hear the breaker reset if it was tripped. Move the bre…
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A rectifier converts from AC to DC power by blocking one half of the AC current. A full-wave bridge rectifier is actually 4 rectifiers combined in such a way that it reverses the blocked half of the power, allowing it to flow through.A standard power supply consists of a transformer (for voltage cha…
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277 volts is the Hot to Neutral voltage in a 277/480 volt 3-phase "Y" electrical system. This is a commercial and industrial application voltage. The purpose of using higher voltages in these applications is to supply higher power levels [watts or kVA] than at lower voltages for the same size of c…
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Answer Salt Generators can run on 110/120 volts or 220/240 volts. They have a transformer that steps the current down to 12 volts so the electrical usage is very minimal. None of the manufactures even mention power usage because it is so low; your pool pump is going to draw 100 times more power t…
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Answer for USA, Canada and countries running a 60 Hz power supply service. You need a transformer. Either a 277 to 240 volt transformer, to change the voltage, or a buck-boost transformer, to reduce the voltage. <><><> Easy answer, you can't. Difficult answer, most devices ma…
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No! The concept of three phase alternating electricity refers to the relational phase differential of three alternating current single phase sine waves, each displaced 120 degrees of phase angle from the other. <><><><><><><> Addetion: still the is a three…
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Finding Household Electrical ShortsWhile there could be a number of causes, the most likely is either that one of the receptacles (wall socket) is bad or that an electical appliance plugged into the circuit is shorting out after it runs for a while. The quickest way to check the wall sockets is to g…
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Answer Rotational force is usually spoken of as torque. Torque is a term we use to talk about a force that acts on a body to change its rate of rotation. It is the rotational equivalent of force in a linear motion system. A torque can arise from a single offset-applied force (using "inertial for…
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The circuit breaker for the headlights is intergrated with the headlight switch.
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A circuit breaker must be reset to ON after a short circuit but does not need to be replaced. It depends on the type of CB. A fuse is also a circuit breaker and it needs to be replaced after a short circuit. Relayed circuit breakers have to be "picked up" after a dropout and need not be replaced as…
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You will need to replace the complete instrument cluster to fix this problem. That happens all the time. Its just the internal circuit board for the instrument cluster wigging out.Yes it is quite common on these cars, it is actually a bad ribbon cable connection between the LCD and the circuit boa…
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You might want to check with any local salvage yards; that will be your cheapest way. If you're unsure about quality or don't have any salvage yards around, www.advanceautoparts.com has some in their body and trim parts section. I got mine from autopartswarehouse.com and got a pretty good deal. …
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Answer What sort of induction? There are many uses of this word in different maths, sciences and even medical terminology. Webster's Online Dictionary says that this means: 1 a : the act or process of inducting (as into office) b : an initial experience : INITIATION c : the formality by which …
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As many as there are spaces for. The physical amount of breakers that can be added to a load-center or for that matter an electrical panel is governed by the amount of slots that are available. This holds true no matter what the amp capacity of the unit is.What you don't want to do is, turn on more …
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Answer It will operate assuming you have a 120/208V 3 phase system, but it will not get as hot as it would on a 240V system. To wire it just use 2 hots instead of 3 and connect the neutral.
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Outlets and power (110V outlets and 120V outlets are practically the same for this discussion. I will refer to them as 120V. Same with 220V/240V outlets.) For your 120V source I assume you plan to use a standard US 120V 15A outlet. This outlet can provide a maximum of 15A at 120V. This me…
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Answer The easiest way is to connect it directly to the battery. Make sure the polarity matches up. (-ve to -ve, and +ve to +ve). Because it is 1F, it will take some time to charge. (probably a minute or two.)In that way, the capacitor will charge to whatever the voltage of the battery. But won't be…
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Answer Yes. GFCI receptacles do not rely on a ground conductor to work. They sense any difference between current flowing in the hot wire and current returning in the neutral wire. Under normal circumstances, these two currents will be exactly the same. If there is a difference, then some of the…
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The starter motor is at the rear of the engine.
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 Answer for USA, Canada and countries using similar 60Hz household electricity suppliesLoss of service has me confused, loss of service from the service panel, or loss of service of the series of outlets on the circuit...? If you are referring to the outlets, then you most likely have an open…
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Including The Steps: 1. Insert the power plug into a 230-240 voltage ac power outlet. 2. Switch Control:To turn on the fan, simply push any of the speed control buttons: 3=High speed; 2=Middle Speed; To turn it Off, push the "O" button. 3. Oscillating Knob: push down the oscillating knob and fan wi…
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Answer A dynamo is a device that converts physical energy (water turning a wheel, steam driving a piston, etc.) into electrical energy. It is also known as a generator.
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Soldering SilverNo, it isn't hot enough. IT DEPENDS, if two silver plates are overlapped and then soldered with say electical (Tin/Lead) ie Resin cored solder then YES. But if two silver rods or bars or sheet are to be joined end to end etc then NO. The criteria is STRENGTH of the joining material a…
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Answer The fact that the engine was replaced should not be an issue. Here is my assesment based on your question; either the ac system has a smaller capacity (smaller compressor, condenser, receiver dryer), and for that reason while driving you get a higher flow of freon thru the system compared …
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Answer for USA, Canada and countries running a 60 Hz power supply service. Could be a bad outlet, or bad connection at and after the outlets that trip the breaker. Could also be too much load on specific outlets. <><><> LIFE SAFETY WARNING! [disclaimer] Electricity is dan…
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your orafice tube filter is clogged. they are normally located in the a/c line,sometimes it's made into the line itself.is the system fully charged w/ freon?
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Is it 110/220 or just 220? There is a difference and also is it single phase or 3 phase? <><><> Generally, NO. On the other hand, a few motors were designed to be "convertible," in that their original windings were designed to work on multiple voltages by altering the wiring at t…
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Answer all geos are differnts engines none r the same and almost evey year something was made are done different tracker is a izuzu engine moter i beleave r Yamaha or Honda and the stroms r suizkis
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Answer It has been stated that: "AC outlets have polarity specific outlets because some devices can be ruined if the device is plugged in backwards." Although this might be true in some sense, the most important reason is enhanced user safety. Expanded explanation This is a very good questio…
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1. You need to buy a R-134a recharging tool and at least one cannister of R-134a. You can find this in any auto parts store and even Wal-Mart. These come as a package and usually cost about $20 for the tool and 19 ounce can. Additional 12 ounce cans are about $6-$9. (In some locations around the cou…
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The formula for a simple DC voltage drop across a cable is: VDrop = Vmeasured at the input of cable - Vmeasured at the output of cable This formula may seem simplistic however keep in mind that the sensitivity, accuracy and resolution of measuring instrument instrument is what is really important.…
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Voltage 169sin(37*) = 101.7067389 (round to 101.7) *=degrees (function found on TI Calculators under "Angle") you can not do like that generally VpSIN(Wt
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make sure you have vaccum to the transducer, i believe there will be 2 hoses coming from the throttle body. make sure that the metal line that connects to the bottom of the transducer is not clogged with carbon. if you have vaccum and that line is clear, take the hose that goes to the egr vsv soleno…
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There are two main wires that normally come off the battery, one extremely large one that feeds the starter, and one reasonably thick wire (usually around 10 ga) that feeds everything else in the car.A classic style ammeter runs in series with the battery wire that feeds everything else in the car. …
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Because Alternating Current is the standard form of electricity available, devices which operate on Direct Current, such as a Liquid Crystal Display, have a converter, which converts the AC into the appropriate voltage of DC.
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it is not a good idea. the alternator is selected to meet the needs of the electrical system. Check to see what the maxium amp load is. It may cause a fault light to show up. the computers are set up for specific amps. Check to see if similar Volvo models of the year use a 70 amp alternator. hope it…
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Alesandro Volta invented the first battery.The first actual battery was invented by a man in Italy named Alessandro Volta in 1800. Volta was a physicist who was born in February of 1745 and died on March 5, 1827.
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idle air control motor where is it located
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Answer hd f150 has 380 hp, while the lightning has 500 hp. different intakes and exhaust.i may be slightly off on hp figures, but there is a significant difference. Added by Frontline62 6/11/08 The 1999 & 2000 Lightning Have 360HP. The 2001-2004 Lightning have 380HP. The SC HD has 340hp. Fo…
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electrıcal engıneers work wıth electrıcıty (from genratıon to utılızatıon).electrıcal engıneers desıgn,test and maıntaın electrıcal equıpments from the smallest computer chıps to the largest motors and generators.they also re desıgn those equıpments ın servıce for a better perfo…
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Its called limb lengthening and is usually done to alter a persons height. It used to be a corrective surgery but is now cosmetic. They could do the same with arms and fingers. Bone is separated then a brace is used to slowly separate the bones as new bone grows in the gap. Post op is 1 week in …
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on any 12v car, the alternator output should be between 13.6v to 14.4.
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Capacitors act like tiny storage batteries made of two plates separated by a thin insulator or air. When one plate is charged negative and the other positive, they build up a charge that remains when the current is removed. When its power is required, the circuit is switched to conduct current betwe…
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Ton for air conditioner1 ton of air conditioning = 12,000btu`s of cooling per 1 hour. 2 ton = 24,000 btu`s of heat removed in 1 one hour3 ton - 36,000 and so on.Airflow is measured in CFM (cubic feet per minute)
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Answer its all about electrical circuits and instruments. its applications in detail,workin of essential devices.It always goes hand in hand with electro-mechanical devices n such related stuff. It depends on the school you are applying to. so it'd be better if you take a look at the 'course plan'. …
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For sine waves: To calculate the RMS value of a sine wave, multiply the peak value by 0.707. The peak value is, of course, one half the peak-to-peak value. To go the other way, reverse the order of operations. That is, if you're starting with an RMS value, divide by 0.707 and then multiply by two to…
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could be where your wiring harness goes connects to the fire wall or the ignition switch when it is in the start position not putting voltage to the coil . one way to check this is to put a jumpier wire from the battery to the coil and try to start if it does it could be one of the above
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Answer A generator. But wouldn't an extension cord be simpler? Kind of an odd question, but I'm a big fan of power inverters. There quiet, can be plugged into a vehicle or run off a 12V battery. I have a 400W inverter that has come in very handy. I use it for road trips when I use my lapt…
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If your car is a recent model there is no dipstick, the oil level is checked electronically and should be done in the following way:Your oil must be hot........ park on a level surface.......stop engine.......wait 15 minutes.......turn ignition key to first position........find the oil check program…
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It's likely a bad cable off the #2 seat motor. See this link: http://www.volvo-forums.com/t18304-850-seat-back-cable-repair.htm
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A multimeter is an instrument used to check for AC or DC voltages, resistance and continuity of electrical components, and small amounts of current in circuits. This instrument will let you check to see if there is voltage present on a circuit.
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The bare (or green) grounding wire is for user safety. If there is a fault inside an appliance, a wire can become disconnected and touch other parts. If it is the "hot" side of the circuit, the parts can become energized (whether or not the switch is on). This is a dangerous hazard because a person …
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You simply turn off the light switch ( so you don't get zapped). Wait a minute or so for the bulb to cool, then unscrew the burnt out light and reinsert a working light bulb. Be sure to tighten the bulb (so that it makes good contact with the base) , but don't force it or over-tighten.
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Answer for USA, Canada and countries running a 60 Hz power supply service. Upgrading your service will not keep individual circuits from tripping. An overloaded circuit on a 400-amp service will still trip. Large individual loads require their own circuit. Large circuits with multiple outle…
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120 Volts (roughly) in the US.
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Some confusion here KW and KVA are units of power. The ampere is a unit of current. If you divide power by the voltage involved, you can determine the current involved, in amps. Power (watts) = volts x amps A volt-amp is a watt. (A volt times an amp is a watt.) I=(KVA*1000)/(1.732*V) (Three Phase…
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by running electric current all through a wire a magnetic field is created
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When two objects rubbed together become charged due to electrons being transferred from one object to another.charging by friction is when two different materials are rubbed together or come in contact
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Answer The answer to this qustion is threefold. First, terror value. If you see some guy coming at you with a multi-bladed knife, odds are you'll be pretty scared. Second, having more blades increases the chance of the knife's user inflicting a lethal wound on his target. Lastly, in brawls or kni…
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One cycle takes 1/60th of a second to complete.
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The easy answer - it's not always forward biased. Both it, and the collector-base junction, must be forward biased to pass current through to the collector. Whether NPN or PNP the relative bias (voltage) on the base determines the conduction from emitter to collector. NPN: if the base is positive, r…
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Answer Active systems have a much longer range than passive systems due to having an internal battery. Because of this an active tag will be much larger and more expensive than a passive tag. The passive tag will basically convert the RF signal from the Interrogator or reader and turn it into ene…
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A Step-Up Option is a type of derivative in which the option's strike price resets when knocked in. For example, a long, at-the-money step-up put on a market with a spot price of 100 could have a reset strike every 10 points. When the market hits 110 your strike price steps up to 110.This will make …
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It'll produce voltage if you spin it forwards, too. The only difference between a DC motor and a DC generator is what you use it for. A long time ago, cars had DC generators on them instead of AC alternators. When you replaced a generator, you had to "polarize" it so it would make electricity. You …
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