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Electronic Principles

Electronic Principles
If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage?

40 V
60 V
36 V
0 V
None of these

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Electronic Principles
What kind of battery is most likely included in a cordless electric knife?

Nicad battery
Mercury-cell battery
None of these
Zinc-carbon battery
Lead-acid battery

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Electronic Principles
A current source has an internal resistance of 100 kW. What is the largest load resistance if the current source must appear stiff?

10 k Ohm
None of these
20 k Ohm
2 k Ohm
1 k Ohm

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Electronic Principles
The graph of current gain versus collector current indicates that the current gain

varies slightly
varies enormously
is contant
equals the collector current divided by the base current
None of these

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Electronic Principles
Silicon atoms combine into an orderly pattern called a

None of these
Crystal
Semiconductor
Valence orbit
Covalent bond

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Electronic Principles
Suppose a voltage source has an ideal voltage of 12V and an internal resistance of 0.5W. For what values of load resistance will the voltage source appear stiff?

None of these
6 Ohm
5 Ohm
100 Ohm
50 Ohm or more

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