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Electronic Principles

Electronic Principles
If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage?

36 V
60 V
40 V
None of these
0 V

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Electronic Principles
Current can flow through a normally open push button switch as long as:

its contact remain open
its contact remain open
you are pressing the button
None of these
you are not pressing the button

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Electronic Principles
Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating?

P = PR
R = E2/P
I = P/E
P = E2/R
None of these

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Electronic Principles
Positive ions are atoms that have

None of these
Lost a proton
Lost an electron
Gained an electron
Gained a proton

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Electronic Principles
Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value?

38.74 V
35.4 V
None of these
37.4 V
30.4 V

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Electronic Principles
The Norton current is sometimes called the

Thevenin voltage
Open-load current
Thevenin current
Shorted-load current
None of these

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