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Electronic Principles

Electronic Principles
The equivalent of 1 micro A is:

1000 A
None of these
one-millionth of an ampere
10000A
one million amperes

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Electronic Principles
A zener diode has a voltage of 10 V and a current of 20 mA. What is the power dissipation?

200 mW
10 mW
None of these
20 mW
300 mW

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Electronic Principles
What form of energy is used for creating static electricity?

Mechanical energy
Chemical energy
Light energy
Solar energy
None of these

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Electronic Principles
What kind of battery is most likely included in a cordless electric knife?

Nicad battery
Lead-acid battery
Mercury-cell battery
None of these
Zinc-carbon battery

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Electronic Principles
Which one of the following devices is most often used for measuring opposition to current flow in a circuit?

Ohmmeter
None of these
Ammeter
Voltmeter
Wattmeter

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Electronic Principles
Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current?

P = I2R
I = P/E
P = E2/R
P = IE
None of these

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