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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
0.083333333333333
7200 A
180 A

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Electronic Principles
What is the phase shift between total current and voltage, if 100 ohm resistor connected in parallel with an inductor that has a reactance of 200W?

None of these
180 degree
26.6 degree
90 degree
0 degree

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Electronic Principles
Most AC power is obtained from:

generators
oscillators
lightning
None of these
batteries

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

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

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

watt
ohm
ampere
None of these
volt

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Electronic Principles
At room temperature an intrinsic silicon crystal acts approximately like

a piece of copper wire
an insulator
None of these
a conductor
a battery

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