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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?

208 V
651 V
707 V
None of these
700 V

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Electronic Principles
Doubling the operating voltage of a purely capacitive circuit:

multiplies the capacitive reactance by 7
has no effect on the capacitive reactance
None of these
doubles the amount of capacitive reactance
cuts the capacitive reactance in half

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Electronic Principles
When the graph of current versus voltage is a straight line, the device is referred to as

Active
Linear
Bipolar
None of these
Nonlinear

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Electronic Principles
Holes are the minority carriers in which type of semiconductor?

n-type
Intrinsic
Extrinsic
p-type
None of these

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

29
18
4
1
None of these

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Electronic Principles
Doubling the operating frequency of a purely capacitive circuit:

doubles the amount of total current
has no effect on the total circuit current
thrice the amount of total current
None of these
cuts the total current by one-half

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