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Electronic Principles

Electronic Principles
When the collector current increases, what does the current gain do?

None of these
stays the same
increases
any of the above
decreases

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

0.083333333333333
0.5 mA
200 A
2 mA
None of these

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

thermocouple
solar cell
chemical cell
electric device
None of these

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Electronic Principles
As the temperature increases, the current gain

None of these
can be any of the above
increases
contant
decreases

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

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

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

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

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