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Electronic Principles

Electronic Principles
What is the algebraic sum of this series of values:+2, -3, -6,+4?

None of these
-6
-3
2

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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
2 mA
0.5 mA
200 A
None of these

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

6
9
85
None of these
81

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Electronic Principles
A real voltage source has

A large internal resistance
A small internal resistance
Zero internal resistance
None of these
Infinite internal resistance

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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
20 W
None of these
1000 W
200 W

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Electronic Principles
A zener diode has a voltage of 10 V and a current of 20 mA. What is the power dissipation?

20 mW
300 mW
None of these
200 mW
10 mW

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