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Electronic Principles

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

watt
volt
ohm
ampere
None of these

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Electronic Principles
Doubling the diameter of the coil in an inductor:

multiplies the value of inductance by four
reduces the value of inductance by one-fourth
multiplies the value of inductance by two
None of these
reduces the value of inductance by one-half

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Electronic Principles
A current source has an internal resistance of 100 kW. What is the largest load resistance if the current source must appear stiff?

2 k Ohm
1 k Ohm
20 k Ohm
10 k Ohm
None of these

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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
base current
supply current
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

2 mA
None of these
200 A
0.5 mA
0.083333333333333

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

30.4 V
None of these
35.4 V
38.74 V
37.4 V

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