0
Electronics Engineering
Electronics Engineering is a branch of engineering that deals with practical applications of electronic components, devices, systems, or equipment. Electronics are devices that operate on low voltage sources, as in electron tubes, transistors, integrated circuits, and printed circuit boards and use electricity as part of its driving force.
24,372 Questions
It has been a long time since I worked in the industry, but I seem to recall that the values marked on the caps is in "MICROFARADS," when not marked otherwise. In the "old" days we used a benchtop AC powered "IMPEDENCE BRIDGE" to characterize the value of caps. I think I remember reading somewhere that there is now a battery powered, handheld device called an "LCR METER," which does the same thing. I checked with a couple of my local Radio Shack stores, and they don't even know what an impedence bridge is, let alone an LCR meter so if you want to get one, you'll have to go to an electronics supply house used by professionals. Another possibility for characterizing the values is to take the caps to a local TV/electronics repair shop and a technician might be able to help. Another possible source for help may be a local "Ham" radio club, or an operator.
How do you calculate percentage error of a resister?
You don't, you read the tolerance markings. If you measure the resistor and it is outside the marked tolerance it is bad.
How do you install a scosche FM-mod02 FM modulator on a 2006 Chevy Cobalt?
Very simple to install if you are somewhat handy with splicing electrical wires. There is a Red wire that needs to be taped into the radio ACC power line and a black wire that needs to be grounded to the chassis. If you don't have a manual/wire diagram on hand... easy way to check which wire is the ACC is to (1) unplug the harnesses on the back of the factory radio, (2) ground the MOD02, (3) turn the vehicle key all the way to "off", (4) insert the MOD02 red wire into one wire of the harness at a time and turn the key to "on". Remember to turn the key to off again after you are done checking that specific wire to start over. The wire that makes the power switch on the MOD02 glow only when the key is turned is your ACC wire. You will need to splice into this. After this it's pretty much plug and play. Some vehicles (my Infiniti for example) require an antenna adaptor because they don't utilize the standard Motorola connection that the MOD02 needs as your radio antenna wire now plugs into the MOD02 and the MOD02 plugs into your radio. These are relatively inexpensive.
What happens when the magnet stops moving in a DC motor?
Nothing. The motor is not doing work. A voltage needs to be switched between the coils for it to go.
What is the Unit of capacitance in ohm and meter?
Capacitance is measured in Farads. "The unit... in ohm and meter" does not make sense.
How can you calculate speed of radar?
Radar emissions are electromagnetic radiation that travel at the speed of light.
What is the square law detector?
It simply means that the DC component of diode output is proportional to the square
of the AC input voltage. So if you reduce RF input voltage by half, you'll get one quarter as much DC output.
Or if you apply ten times as much RF input, you get 100 times as much DC output as you did before. An
increase of 3dB results in twice as much output voltage.All diodes will follow
the square-law rule for small signals. We
should choose one that is fast, so 1N4000-
series power diodes are out. Any diode with a
lot of capacitance is out. Diodes with a sharp
I vs. V curve will give more output, so silicon
diodes are less desirable. Schottky diodes are
great, but they require DC biasing to get into
the really curved part of the I vs.V curve.
With zero bias, a germanium diode has very
decent qualities (apart from nasty
temperature effects). When Hewlett Packard
makes square-law diodes using exotic
semiconductors like gallium arsenide with
molecular-beam-epitaxy machines, the result
looks remarkably similar to a simple pointcontact
germanium diode like a 1N34A.
What is film integrated circuit?
A type of hybrid integrated circuit. Hybrid integrated circuits use individual components mounted on a ceramic circuit board. The circuit board traces can be placed on the ceramic in a variety of different ways. For film hybrid integrated circuits metal vapor deposition is used and either thin films or thick films of the metal can be deposited. The components can be connected to the traces using either surface mount or welded individual wires.
How do you connect Two DC generators together to double the output voltage?
You would connect them in series to double the output voltage.
SRAM based FPGAs cant be used for space application But we can go for Radiation tollerant Anti fuse FPGA.
Arduino is a physical computing platform based on a simple I/O board and a development environment that implements the Processing/Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g., Macromedia Flash, Processing, Max/MSP, Pure Data, SuperCollider). Currently shipping versions can be purchased pre-assembled; hardware design information for older versions is available for those who would like to assemble an Arduino by hand.
An example of a voltage source is a?
battery
A generator
electrical outlet
solar panel
wind turbine
or any source a voltage can be obtained.
What is the time constant of a 20mH inductor in series with a 230 ohm resistor?
Simple...(20*10-3)/230=869 microseconds
Does Panasonic make a Blu-ray player?
Yes, Panasonic does make blu ray players. Several, in fact. Panasonic is one of the top brands for blu ray players, alongside Sony, Samsung, Sharp, and Pioneer.
Why do guitar rockers choose tube amplifiers instead of transistor amplifiers?
A: TUBE AMPLIFIERS are operating at higher voltage which makes the dynamics of amplitudes more desirable. Other then that there is no other reason. tube amplifiers are bulky heat generating components efficiency poor and frequency limited.
In a transformer primary or secondary will inside winding?
A step-down transformer's primary is high voltage and secondary is low voltage, based on voltage configuration or load we select which winding we do fast.
In air-cooled Transformers output voltage is high and load current is low. So in air cooled low voltage winding in side and high voltage winding in out side of the coil . So we can reduce high voltage short problems and we can easily provide coil insulation . reduce short problem. It is cooled in oil.
In step-down transformers we can do high voltage inside of the coil and low voltage and high current of the coil is outside. Because we can better coled in outer side . and reduced to temp problems.
AnswerThe terms 'primary' and 'secondary' do not relate to a transformer's voltages, but to how its windings are connected. The primary winding is connected to the supply and the secondary winding is connected to the load. So, for a step-up transformer, the secondary winding is the higher-voltage winding while, for a step-down transformer, the secondary winding is the lower-voltage winding.Your question, therefore, should ask whether the higher- or the lower-voltage winding is the 'inside' winding (i.e. the winding closest to the core), and the answer is that it is the lower-voltage windings are innermost and the higher-voltage windings that are outermost.
What type of welding which do not require a molten electrode?
TIG welding electrodes do not melt under most applications. Electrode means it carries electrical current. In MIG welding the wire becomes the electrode. In TIG and Gas Welding the filler material is called a rod. Stick welding uses rods called electrodes.
Can you use an extra stereo receiver for an amplifier?
If it has auxiliary inputs, such as a line level input, then yes, it should be able to serve as an amplifier. Be warned though that it probably won't work well as a guitar / instrument amplifier.
Why instrumental amplifiers have high CMRR?
That way they can filter noise (assumed to be common on both input terminals) and extract the signal even if it's relatively weak.
They are horizontal polarization, vertical polarization, and circular polarization. Use the link below on antenna theory and see some examples and gather more information.
Basically, polarization describes how the E-field is moving when it leaves the antenna.
In horizontal polarization the signal moves in a horizontal fashion (-).
In vertical polarization the signal moves in a vertical fashion (|).
In circular polarization the signal moves in a circular fashion (O) with either left-handed or right-handed rotation.
Now, when you want to talk to someone using horizontal or vertical polarization you want to match their angle of polarization exactly for the strongest signal.
Cross-polarization is radiation orthogonal to the desired polarization. For instance, the cross-polarization of a vertically polarized antenna is the horizontally polarized fields.
This is important to know because when you are setting up something like a satellite connection. In order to allow more signals through the satellite transponder within a fixed bandwidth and with decreased interference, the satellite makers alternate the polarization between adjacent transponder channels. (-|-|-|-|-|-|). Two adjacent channels can be "shoved right up against each other" and will interfere in a minimal way if they are polarized oppositely. Since interference affects their customers, satellite vendors are very touchy about proper polarization, and monitor gaps, called "guard bands" to ensure that you are properly aligned.
1). You don't need the voltage 'E' in order to calculate the total resistance. The total
resistance is the same whether the circuit is connected to a big battery, to a small
battery, to a bicycle pump, or lying in the back of the desk drawer.
2). In a series circuit, the total resistance is just the sum of the individual resistances.
In this example, the total resistance is
R1 + R2 + R3 = 100 + 500 + 600 = 1,200 ohms .
What refers to the tendency of oil to resist flowing?
Oil viscosity depends on it's temperature. The higher the oil temperature is, leads to higher viscosity and low flow resistance. Cold oil temperature leads to lower viscosity and higher flow resistance
What were third generation computers used for?
The same kinds of things as earlier first and second generation computers had been used for, but their smaller size and typically lower cost permitted them to enter more markets finding applications where portability was critical.
