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Electronic Principles

Electronic Principles
Which one of the following is most likely used for measuring the rate of electron flow?

Ohmmeter
Ammeter
Wattmeter
None of these
Voltmeter

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Electronic Principles
Which one of the following statements regarding ac circuits is correct?

None of these
All of these
Current lags the voltage through a resistor
Current and voltages are in phase through a resistor
Current leads the voltage through a resistor

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Electronic Principles
The nucleus of the copper atom contains how many protons?

1
29
None of these
4
18

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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 voltage drop and amount of resistance?

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

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Electronic Principles
Which one of the following equations most directly determines the amount of current flowing through a resistor when you know the value of the resistor and the voltage drop across it?

I = E/R
None of these
E = I2R
E = PR
I = ER

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Electronic Principles
Doubling the diameter of the coil in an inductor:

None of these
multiplies the value of inductance by four
reduces the value of inductance by one-fourth
multiplies the value of inductance by two
reduces the value of inductance by one-half

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