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Electronic Principles

Electronic Principles
How much current flows through a 60-W light bulb that is operating at 120 V?

0.5A
None of these
7200 A
180 A
0.083333333333333

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Electronic Principles
Assuming 100% efficiency, what is the power being applied to the primary winding of the transformer described in the above question?

20 W
None of these
1000 W
100 W
200 W

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Electronic Principles
The basic unit of measurement for resistance is the:

watt
ampere
ohm
volt
None of these

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Electronic Principles
A real voltage source has

None of these
Zero internal resistance
A large internal resistance
A small internal resistance
Infinite internal resistance

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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
20 km or less
20 k Ohm or more
200 k Ohm or less
200 k Ohm or more

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Electronic Principles
For normal operation of the transistor, the collector diode has to be

Operating in the breakdown region
None of these
Reverse-biased
Nonconducting
Forward-biased

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