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Electronic Principles

Electronic Principles
How much current flows through a 0.02 micro F capacitor that is operating from a 12-V ac, 100-Hz source?

0.151 mA
2.02 A
None of these
0.995 mA
157 raA

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Electronic Principles
What is the turns ratio for the transformer specified in the above question?

None of these
10.738
0.575
0.707
1.5

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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?

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

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Electronic Principles
The basic unit of measurement for resistance is the:

watt
ohm
ampere
None of these
volt

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Electronic Principles
Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit?

Permeability
Retentivity
Permeance
There is no valid comparison
Reluctance

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Electronic Principles
For normal operation of the transistor, the collector diode has to be

Forward-biased
Reverse-biased
Nonconducting
Operating in the breakdown region
None of these

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