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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
3
None of these
2
43922

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Electronic Principles
Holes are the minority carriers in which type of semiconductor?

None of these
p-type
Intrinsic
n-type
Extrinsic

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Electronic Principles
An audio transformer has a turn ratio of 9, What is its impedance ratio?

6
9
81
85
None of these

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Electronic Principles
When the Q point moves along the load line, the voltage increases when the current

Stays the same
Can be any of above
None of these
Decreases
Increases

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Electronic Principles
How many types of flow are there in a semiconductor?

3
None of these
2
1

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Electronic Principles
Assuming 100% efficiency, what is the power being applied to the primary winding of the transformer described in the above question?

100 W
200 W
1000 W
20 W
None of these

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