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Electronic Principles

Electronic Principles
When the collector current increases, what does the current gain do?

any of the above
None of these
increases
decreases
stays the same

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

solar cell
thermocouple
piezoelectric devices
chemical cell
None of these

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

None of these
chemical cell
generator
thermocouple
solar cell

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Electronic Principles
Doubling the number of turns of wire in an inductor:

None of these
multiplies the value of inductance by two
multiplies the value of inductance by four
reduces the value of inductance by one-half
reduces the value of inductance by one-fourth

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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?

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

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Electronic Principles
The saturation point is approximately the same as

upper end of the load line
lower end of the load line
infinity
None of these
cutoff point

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