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Electronic Principles

Electronic Principles
A transistor has how many doped regions?

2
1
4
None of these
3

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Electronic Principles
A dielectric material is:

None of these
a good insulator
a poor conductor of electrostatic fields
a good conductor
a good conductor of magnetic fields

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

-3
None of these
2
-6

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

Retentivity
Permeability
Reluctance
Permeance
There is no valid comparison

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

None of these
supply current
collector current
base current
emitter current

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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?

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

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