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Electronic Principles

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

30.4 V
37.4 V
38.74 V
None of these
35.4 V

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

Stays the same
Increases
0oC
None of these
Decreases

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Electronic Principles
Current can flow through a normally open push button switch as long as:

you are not pressing the button
its contact remain open
None of these
its contact remain open
you are pressing the button

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

thermocouple
None of these
solar cell
electric device
chemical cell

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

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

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Electronic Principles
A transistor has how many doped regions?

2
None of these
3
1
4

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