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Electronic Principles

Electronic Principles
How much power is being dissipated by a 1000 W resistance that has 25 V applied to it?

None of these
325 kW
80 W
0.24 W
0.625 W

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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
None of these
38.74 V
30.4 V
35.4 V

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

piezoelectric device
photodiode
solar cell
None of these
nicad cell

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Electronic Principles
A battery is a device composed of one or more:

piezoeletric cells
voltage generators
chemical cells
None of these
solar cells

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Electronic Principles
Silicon atoms combine into an orderly pattern called a

Crystal
Covalent bond
Semiconductor
Valence orbit
None of these

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Electronic Principles
If a load resistance is 1 kW, a stiff current source has a resistance of

None of these
Less than 10 Ohm
Less than 100 k Ohm
More than 100 k Ohm
At least 10 Ohm

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