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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

Can an airbag be probed with a multimeter to measure resistance and continuity safely?

Never probe airbag wiring with a power probe or multi-meter unless you have isolated the circuit by disconnecting both the airbag module and airbag component. As long as you have disconnected these you will be fine.

Does the direct current flows throw capacitor?

Yes and no. A capacitor generally does not pass DC current, except for a small "leakage current", but upon the inital application of a DC voltage, the capacitor will pass current until it reaches the full potential of the applied voltage. The simple answer is no it does not. In fact we use that characteristic to "decouple" one circuit from another in amplifiers for example.

What is rxois?

It refers to the Interface Switch (IS). it allows the RBS speak to the TRX's.

Is the power dissipated in a parallel circuit larger than the power dissipated in a serial circuit?

Consider t resistors with same Ohmic values. If they are in series total resistance Rt = R1 + R2. if they are in parallel then total resistance Rt = 1/R1 + 1/R2. Series connection will have higher resistance.

Is there a motion activated switch that will stay open for a predetermined period?

Yes Many have a time delay adjustment or selector switch to pick how many minutes the delay will be

What is digital transmission of analog data?

it means that you digitize analog data for transmission . Like 2 computer that chatting .

What is the meaning of suppressed carrier in am?

radio an amplitude-modulated wave in which only the sidebands are transmitted, the carrier being removed

http://dictionary.reference.com/browse/suppressed+carrier+modulation

Significance of the ripple voltage on a rectifier circuit?

A: It really depends on the load requirement . Example driving a relay hi ripple with no capacitor is an advantage in efficiency for a sensitive amplifier it will cause mayhem with the performance

What is the Use of circulator in an antenna?

Type your answer here... a circulator in antinna is used to pass the information in all directions

What are the Examples of hybrid devices?

Hybrid devices are combination of two devices with unique characteristics. for example::--modem mobile phones are hybrid of camera, phones and media player.

How can the cathode end of a zener diode be determinded using an ohmmeter?

Hard to do. If your Ohmmeter battery is just 1-1/2 volts, then you simply put the test leads on the diode one way, then the other way. The way that show a meter reading will have the black lead on the 'cathode', if you assume, as most do, that electrons are issued from the " - " or 'minus' side of the battery.

BUT . . . if your Ohmmeter voltage is above the zener's trigger voltage, then you will get a reading both ways.

What does a Voltmeter do in a circuit?

A voltmeter measures the voltage present in the circut. Voltage is the amount of energy available to push charges through an electric circut.

What is Galvani's invention?

He helped Alessandro Volta in inventing the battery :)

How does a inductor or capacitor returns power to circuit?

A: Current flow only if there is a return path to the source it does not matter what it is connected to. What leaves at one end of the source will be identical to the return in current

How many amps are in 420 mA?

There are .42 amps in 420 mA. Equation 420/1000 = .42 amps

What do anti static mats and wrist straps use to prevent anti static chargers from racing through devices?

A person can build up a static charge in their body simply be walking over a nylon carpet. If they then touch delicate components on a motherboard, the spark could fry a component, destroying the motherboard. Antistatic mats help prevent static build up. Antistatic wrist straps direct any body static directly to earth before any damage can occur. Touching a water pipe or a computer's chassis has the same affect of getting rid of body static. If children are jumping up and down on a (nylon) trampoline, you will get a spark (static) if they touch you - quite a party trick, especially if the children's hair is also standing up - a sure sign of static electricity!

Why secondary terminal voltage decreases with increase in load?

An increase in load (equivalent to a decrease in resistance*) causes an increase in load current. This increases the internal voltage drop within the transformer, and the terminal voltage reduces accordingly.

[*An increase in load means more current is being drawn by that load, so an increase in load is equivalent to a decrease in load resistance]

The device used for measuring potential difference is known as?

The potentiometer is the device that is used in the measuring of the potential difference.

Why does the resistor current stay the same when you adjust the power factor?

A pure resistive load always has a power factor of one. This is because the current and voltage waveforms are in phase in an AC circuit.

What is the toxic chemical inside cathode ray tubes?

Cadmium, Phosphor material and Lead coated glass of CRT that's so TOXIC.

What is discharging direction of capacitor?

When a capacitor discharges the discharge current flows in the opposite direction to the current used to charge it.