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Electronic Principles

Electronic Principles
Which one of the following devices is most often used for measuring electrical potential difference?

Wattmeter
None of these
Ohmmeter
Voltmeter
Ammeter

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Electronic Principles
Which one of the following properties of a magnetic circuit can be directly compared to current in an electrical circuit?

Magnetomotive force
None of these
Number of lines of force
Flux density
Reluctance

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

None of these
2
1
3

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Electronic Principles
The knee voltage of a diode is approximately equal to the

Barrier potential
Breakdown voltage
None of these
Forward voltage
Applied voltage

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Electronic Principles
Inductive reactance is measured in units of:

Ohm
henrys
volts per second
amperes per second
None of these

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

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

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