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Electronic Principles

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

0.083333333333333
180 A
7200 A
0.5A
None of these

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Electronic Principles
The knee voltage of a diode is approximately equal to the

Barrier potential
Forward voltage
Applied voltage
None of these
Breakdown voltage

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Electronic Principles
What is the inductive reactance of a 0.1-H coil that is operating at 1000 Hz?

Less than 1 Ohm
444 Ohm
100 Ohm
628 Ohm
None of these

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Electronic Principles
Norton's theorem replaces a complicated circuit facing a load by an

Ideal current source and parallel resistor
Ideal voltage source and parallel resistor
Ideal voltage source and series resistor
Ideal current source and series resistor
None of these

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Electronic Principles
The rotating coil of wire in an electric motor is called the:

armature
brush
commutator
None of these
loop

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

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

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