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Electronic Principles

Electronic Principles
What is the turns ratio of a power transformer that shows 50 V at its secondary winding when you apply 150 V to its primary winding?

43891
None of these
2
43922
3

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Electronic Principles
Doubling the operating frequency of an inductive circuit:

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

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Electronic Principles
The net charge of a neutral copper atom is

4
-1
None of these
1

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Electronic Principles
A battery is a device composed of one or more:

piezoeletric cells
None of these
voltage generators
solar cells
chemical cells

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

13 mA
None of these
3.2 mA
3.75 mA
0.05 mA

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

0.05 mA
None of these
13 mA
3.2 mA
3.75 mA

ANSWER DOWNLOAD EXAMIANS APP
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