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Electronic Principles

Electronic Principles
Suppose the voltage from a power outlet is 120 Vrms. What is the peak voltage?

120 V
170 V
100 V
None of these
180 V

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

1.5
0.707
10.738
0.575
None of these

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

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

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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?

651 V
None of these
707 V
700 V
208 V

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Electronic Principles
At room temperature an intrinsic semiconductor has

No holes
many holes
many free electrons
a few free electrons and holes
None of these

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Electronic Principles
If the current gain is 200 and the collector current is 100 mA, the base current is

200 A
None of these
2 mA
0.5 mA
0.083333333333333

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