Electrical Engineering

Sounds more like a "homework" or "test" question, rather than a real-world question, and vague, at that!

Could you re-phrase your question in a better, more-precise context, or check it for typos? Right now, your question seems to ask "What's the advantage of using a transformer, instead of using a transformer-coupled circuit?"...which makes no sense, since a "transformer-coupled circuit" USES a transformer.

Electromagnetic Suspension (EMS)

A galvanometer can be converted into a voltmeter by connecting it with very high resistance.

differential protection relay

The output of a solar panel is direct current. Transformers need alternating current to operate.

I "think" it stands for Wiring Harness It means WEATHER CONDITION - WET OR WATER Please refer to this link:http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=ZLGR.GuideInfo&ccnshorttitle=Thermoplastic-insulated+Wire&objid=1074134071&cfgid=1073741824&version=versionless&parent_id=1073996426&sequence=1

Ohm is the unit for electrical resistance. The definition is given by Ohm's Law: resistance = voltage / current; in SI units: ohms = volts / amperes. For example, a resistance of 1 ohm would result in 1 ampere of current for every volt applied.

Is sure can! Your hormones are usually all over the map just before you start your periods and even during. Usually blemishes can break-out during this time.

You don't have to spend a bundle to get a regiment of good skin care. If you have an oily complexion then buy products like Ponds/Nutrigena/etc. Face foam is great (get it for oily skin, or if you have dry skin.) Never leave your make-up on at night and let those pores breath. Use a non-drying toner on your freshly washed face, and find a cream in one of the products I mentioned that doesn't clog pores.

There are also blemish products out there that will help dry up the blemish(s).

Usually when starting periods many women get a "sweet tooth" so instead of eating too many sweets, eat a small piece of chocolate (suck on it) and it will take the cravings away. Green leafy vegetables and fruits are excellent for good skin complexion and don't forget that water! 8 glasses a day.

Armored electrical cable contains insulated electrical service wires protected by a flexible steel covering. Unarmored electrical cable has no protective flexible steel covering, its covering is made of plastic.

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Armored cable (BX) is the older version of Metal Clad cable (MC). It was flexible steel covered wire that used the steel as it's Ground. BX was a poor grounding system so it was replaced with MC which looks similar but has a separate Grounding conductor. MC is most often made with aluminum as its cover.

Armored cable if used today will refer to MC type wiring.

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Some kinds of armored cable are in fact made to a tougher standard than the ordinary soft wire strand types of shielded cable that are used for hooking-up antennas. The 'armor' is actually a thin flexible metal film that better protects the wire or wires inside from damage in high use or high traffic areas. Such kinds of armored cable are also used in radio frequency assemblies in electronic equipment.

In Ohm's Law, E stands for voltage, I stands for current (amps), and R stands for resistance. Ohm's Law states: E = IR or voltage equals current times resistance. This means that current flowing through a wire (that has resistance) produces a voltage drop in the wire. Since the voltage drop is the result of current flowing through a resistance, old-school engineers will sometimes refer to it as "IR drop". So, since E = IR, saying "IR" is the same as saying "voltage".

Probably because Egypt came under the British sphere of influence, whereas KSA came under the US sphere of influence.

The simple answer is "NO". Whatever is tapped-off of the secondary, or otherwise modified, does in no way diminish the laws of transfer of power from one winding to the next, or available potential. Whatever is actually realized at the secondary will never be 100% of the input due to losses in transfer, such as heat losses. * I'm still not sure but having thought about it more I now think that if you increase the resistance in the secondary circuit and therefore decrease the secondary current, without changing either voltage, the power on the secondary would fall with the current. The primary power would also have to fall to remain equal to the secondary power (heat losses aside), and the primary current would also fall. Is this correct? Thanks Yes. Because a transformer is very efficient, power measured on each side is almost the same. P = VI = vi The voltage ratio V/v depends on the number of turns in the windings and is therefore constant. Decreasing resistance on the secondary side allows an increase in the current. Current on the primary also increases because power in is equal to power out.

its the maxium value 0.707 RMS. Root mean square is conversion used to give you the DC equivalent Voltage, Current, and Power of an AC system. It converts AC ability to do work and represents it as a DC equivalent value.

working principle of turnout is that "one turnout provides facilities for turning of vehicle from one direction only and not from both the direction of straight path as in case of roads

The inductor symbol resembles a coil of wire of 3 to 5 turns.

Some but not all brushless motors are waterproof. To make sure that your motor is waterproof I suggest you either contact the maker or go the their website to check.

One voltage is greater in thyristor whether forward breakover or reverse breakdown voltage. The greater of the two voltages in thyristor is forward breakover voltage.

Ohms Law will be helpful in seeing how resistances add up. Let's assume you have a 10 ohm and a 20 ohm resistor in series and 30 Volts. across the series.

Ohm's Law states that Voltage = Resistance x Current. If we describe the 10 ohm resistor as R1 and the other as R2 then the voltage drop across R1 is V1 and V2 is the drop across R2. This can be written V1 = R1 x I1 and V2 = R2 x I2. Since the total voltage must equal the sum of the voltage drops then Vtot = V1 + V2. Also Itot = I1 + I2. Substituting we get Vtot = (I1 x R1) + (I2 x R2) = (I1 + I2) x (R1 + R2). And Vtot = Itot x Rtot so Rtot = R1 + R2.

In example 30 Volts = Itot x (10 + 20) or Itot = 1 amp.

disappointment.

that is why most hand tools use dc motors

Some motors are specially designed for low speed. Some are "invertor Duty" classified so that they can be run on invertor (VFD) normally with a high heat dissipating design.

On low speed the cooling effect reduces drastically since the cooling fan is mounted on the same motor shaft. Hence a separate small cooling fan is mounted on the motor, driven by separate power such that it keeps running at normal speed irrespective of main motor speed, thus providing the required cooling effect.

The voltage output is controlled by the voltage regulator. Check to see if you are getting a DC field voltage. On the voltage regulator there are terminals to different pieces of equipment on the machine. Look for the terminals that are designated F1 and F2. These should have a DC voltage on them. Also look for a potentiometer that controls the field voltage. Turn it one way and the voltage will go down and turned the other way the voltage will go up. Make sure that this potentiometer is in the correct position to allow voltage to the field coils.

it will take more electricity to run the alternator than the alternator can produce to drive the motor. the inefficiency is caused by waste heat, friction in the bearings and drive connection. it a law of thermodynamics that a closed system can't produce more energy than it consumes. the difference (how much electricity) depends on the overall design, and whether or not it exists in a weightless vacuum at near absolute zero temperature. Both conditions can increase efficiency. some other conditions might be whether the mechanism was designed by cavemen, or hypothetical CAD software that balances a thousand variables in a split second to maximize efficiency of the materials employed. if near 100% efficency is achieved, it would still be a useless machine because it could only run itself.

RMS is just 15/sqr2 average is 15 * 0.637