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Electronic Principles

Electronic Principles
How much current flows through a 0.02-H choke that is operating from a 12-V ac, 100-Hz source?

0.41666666666667
0.955 A
None of these
0.02 A
2.02 A

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Electronic Principles
The current gain of a transistor is defined as the ratio of the collector current to the

emitter current
None of these
collector current
supply current
base current

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Electronic Principles
The valence electron of a copper atom experiences what kind of attraction toward the nucleus?

Weak
None of these
Strong
Impossible to say
Neutral

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Electronic Principles
The equivalent of 1 micro A is:

one-millionth of an ampere
10000A
None of these
one million amperes
1000 A

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Electronic Principles
A basic capacitor is composed of:

None of these
two conductors separated by a dielectric
two coils separated by a conductor
two coils separated by a dielectric
two dielectrics separated by a conductor

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

solar cell
nicad cell
piezoelectric device
photodiode
None of these

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