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Electronic Principles

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

Active
None of these
Bipolar
Nonlinear
Linear

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

None of these
0.5 mA
2 mA
0.083333333333333
200 A

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Electronic Principles
Which one of the following statements regarding ac circuits is correct?

None of these
All of these
Current lags the voltage through a resistor
Current and voltages are in phase through a resistor
Current leads the voltage through a resistor

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Electronic Principles
At room temperature a conductor has low many holes?

Only those produced by thermal energy
many
Same number as free electrons
less than the free electrons
None of these

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Electronic Principles
A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding?

None of these
0.20833333333333
50 A
20 A

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Electronic Principles
A device that converts light energy to electrical energy is called a:

photodiode
thermocouple
None of these
solar cell
photo transistor

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