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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

WHY DOES 1999 neon 2.0 will not start and has on injector pulse width signal?

I had the same issue with mine and found through several igniton checks that the pulse was very low or not there at all. I could get it to stumble run but not stay running. checked all the ground leads and found corsion under the wire ends at small wire from battery to coresupport. cleaned with wire brush and replaced the screws and wire ends as needed this corrected the problem. also found a short in the wire loom near the rear of the motor where it crosses to the coil and back to the ECM the short was at the coil wire and injector wires causing a blown fuel pump fuse and damaged the coil. repaird wiring replaced coil and car seems to run great now.

Frequency compensation techniques in op amp?

This answer is not simple amplifier if the gain is unlimited will tend to oscillate at higherfrequency usually there is a pin out for some amplifiers whereby adding a snub or capacitor will limit this gain internally so it can be stabilized. There is recommended techniques by not a guaranty of stability it depends on the amplifier bandwidth factor Q and grounds and other factors.

Give 5 types excitation of DC motor?

there are 2 different types f excitation

1 seperately excited

2 self excited

What are the classifications of FET?

mosfet, JFET ,these are again divded into many typesdepending upon their material they are made of

What are electrons and how are they involved in creating and electric current?

A: Electrons are particles orbiting a nucleus and depending on the material it can have one to many electrons more means better conductor. As a force EMF is impressed on this material electrons are forced to leave orbit and go where ? to the next nucleus but now here there are too many for balance so one leaves and so on. So as electrons flow one way the lack of one goes the other way. basically that is how electrons flow causing electric current as you put it.

What you mean by internal electrical power supply?

its when theres a power supply inside like a power pack so u can carry it around with u

Will a 100 million volt DC current taser kill you?

Not necessarily. It depends on what your current is, and what two points you are shocked by. The current will depend on the resistance of your skin, and the resistance in the circuitry of the taser. The Human skin is generally about 2.4-16Mohms (depending on the moisture, and salinity of your skin at the time. 300mA(milliamperes or.300 amps) is enough to stop the human heart. Let's say current is I, resistance is R, and voltage is V. Ohm's law states that E=IR therefore I=E/R. For this scenario we will say your skin is at a comfortable 4M(mega or million) ohms. I=100MV/4Mohm, I=25. Yes, 25 amps will kill you. But lets say we put a resistor on the negative side of the circuit. (This is important, when you say 100MV I assume it's positive DC voltage, it would be the other way around if it were a -100MV) We will say the resistor is 1Gohms (or 1 billion ohms, this is a gigantic resistor, and is not practical because the resistance through air is less and the electricity would just arc.) . add this resistance to your skin and you have 1.004Gohms. I=100MV/1.004Gohm, I=0.099, this amperage in DC voltage is not enough to kill you, but it is more than enough to kill you with AC. Realistically, 100MVDC will kill you, but not by stopping your heart, because you would have to have two contact points that cause current to cross your heart, and a taser is superficial (skin or shallow flesh) but it would blow a pretty big hole in you. When we had LORAN stations in the Coast Guard they used really big capacitors(which store voltage kind of like a battery, but discharge rapidly [about the nanosecond range]) and a guy accidentally backed into one that built up a charge over years, just from the static in the air, of about 25KV ,or thousand volts, DC, and it blew two quart sized holes in his hind end.

What is the lifespan of a resistor?

A resistor doesn't deteriorate with age, and has no particular 'life-span',

as long as it's used properly.

-- A resistor in a box on the shelf, or in a circuit where it stays cool, will last

indefinitely.

-- A resistor in a circuit where it's forced to dissipate enough power to make it

hot may change its resistance value permanently, but will continue to operate.

-- A resistor in a circuit where it's forced to dissipate even more than that,

to a ridiculous extreme, may melt or explode. When that happens, it's the

end of the resistor's life-span. But it wasn't the resistor's fault.

Reactance is not dissipate energy so why you are calculating in the account of resistance?

While reactive loads do not dissipate the reactive component of the power supply current, these currents are very real. They must be generated, and so must be taken into account when designing the generator. They also flow in the feeder conductors, cause I squared R power losses and heat, and must be taken into account when sizing the conductors.

What is Varistor diode?

this is a birectional DILDO/FLASHLIGHT. whenever there is a high surge for your carnel appetite, you can release that energy by using this. it's easy to use and very efficient TOY

DifferEnces of long vs short shunt DC COMPOUND MOTORS?

the basic difference is ,in short shunt motor the series field winding wont carry any current under no load condition whereas in long shunt motors series winding will carry no load current.....

What area of science uses amps and ohms?

Amps, or amperes, are a measure of electrical current; ohms are a measure of electrical resistance. Both are widely used in physics.

Difference between inband and out of band signaling?

In in- bandsignalling , the control and management signals travles along with the data signals

where as

in out of band signalling the data and control signals travels in different channels

What is better for headphones one with 63 ohms or 24 ohms?

All things be equal, the 24 ohm will be better. The reason is because they'll be many times louder decibel wise. The 24 ohm headphones can make your eardrums bleed if connected to the right source. 16 ohm (if you can find em) on the other hand will blow your head clean off. If you plug the 63 ohm into most sources you'll probably find the volume level inadequate.

Is there more resistance in the series circuit or the parallel circuit?

Ohm's Law says!

R=V/I

Resistance is directly proportional to Voltage. In series circuit, due to adding the resistance, total voltage will be increased, due to increasing of total voltage, total resistance of the series also be increased.

What does 2.10ghz refered to?

it referred to the clock speed ,commercially this is widely used in defining clock speed of oscillators connected with processors for generating timing signals..

2.10ghz means 2.10*10^9 Hertz or this much signals per second