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Electronic Principles

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

2
1
3
None of these

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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?

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

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Electronic Principles
A real voltage source has

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

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Electronic Principles
At room temperature an intrinsic semiconductor has

many free electrons
many holes
None of these
a few free electrons and holes
No holes

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Electronic Principles
Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value?

38.74 V
30.4 V
None of these
37.4 V
35.4 V

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Electronic Principles
At cut off, the Q point is at

None of these
infinity
middle of the load line
upper end of the load line
lower end of the load line

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