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Electronic Principles

Electronic Principles
Suppose the voltage from a power outlet is 120 Vrms. What is the peak voltage?

170 V
None of these
180 V
100 V
120 V

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Electronic Principles
Suppose a current source has an Ideal current of 10 mA and an internal resistance of 20 MW. For what values of load resistance will the current source appear stiff?

200 k Ohm or more
None of these
200 k Ohm or less
20 k Ohm or more
20 km or less

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

0oC
Increases
None of these
Decreases
Stays the same

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

photodiode
thermocouple
photo transistor
None of these
solar cell

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Electronic Principles
Inductive reactance is measured in units of:

volts per second
None of these
amperes per second
Ohm
henrys

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

0.625 W
325 kW
80 W
0.24 W
None of these

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