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Electronic Principles

Electronic Principles
A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage?

None of these
208 V
700 V
651 V
707 V

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

0.707
1.5
0.575
10.738
None of these

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Electronic Principles
The valence electron of a copper atom experiences what kind of attraction toward the nucleus?

Impossible to say
None of these
Weak
Neutral
Strong

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Electronic Principles
When operating above its resonant frequency, a parallel RLC circuit has the characteristics of a:

purely resistive circuit
parallel RL circuit
parallel RC circuit
None of these
parallel RLC circuit operated above its resonant frequency

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Electronic Principles
The current gain of a transistor is defined as the ratio of the collector current to the

collector current
emitter current
None of these
base current
supply current

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Electronic Principles
Doubling the operating frequency of an inductive circuit:

None of these
has no effect on the inductive reactance
doubles the amount of inductive reactance
multiplies the inductive reactance by 6.28
cuts the inductive reactance in half

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