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Electronic Principles

Electronic Principles
How may valence electrons does a silicon atom have?

2
None of these
4
1

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Electronic Principles
The number of free electrons and holes in intrinsic semiconductor increases when the temperature

Decreases
Stays the same
Increases
0oC
None of these

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

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

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

37.4 V
38.74 V
30.4 V
None of these
35.4 V

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Electronic Principles
What form of energy is used for creating static electricity?

None of these
Light energy
Chemical energy
Solar energy
Mechanical energy

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Electronic Principles
A device that converts mechanical into electrical energy is?

generator
None of these
solar cell
thermocouple
chemical cell

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