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Electronic Principles

Electronic Principles
A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current?

None of these
13 mA
3.2 mA
0.05 mA
3.75 mA

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

solar cell
electric device
None of these
chemical cell
thermocouple

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Electronic Principles
Doubling the operating frequency of an inductive circuit:

cuts the inductive reactance in half
doubles the amount of inductive reactance
None of these
has no effect on the inductive reactance
multiplies the inductive reactance by 6.28

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

None of these
Active
Nonlinear
Linear
Bipolar

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Electronic Principles
At cut off, the Q point is at

upper end of the load line
infinity
lower end of the load line
middle of the load line
None of these

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Electronic Principles
Assuming 100% efficiency, what is the power being consumed at the secondary winding of the transformer described in question 91?

20 W
100 W
None of these
200 W
1000 W

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