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Electronic Principles

Electronic Principles
A transistor has how many doped regions?

3
1
2
None of these
4

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Electronic Principles
How much current flows through a 0.02-H choke that is operating from a 12-V ac, 100-Hz source?

2.02 A
None of these
0.955 A
0.41666666666667
0.02 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?

90 degree
0 degree
180 degree
None of these
26.6 degree

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Electronic Principles
Inductive reactance is measured in units of:

None of these
volts per second
henrys
amperes per second
Ohm

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Electronic Principles
Which one of the following is most likely used for measuring the rate of electron flow?

Ammeter
Voltmeter
Wattmeter
Ohmmeter
None of these

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Electronic Principles
What is the turns ratio for the transformer specified in the above question?

1.5
10.738
0.575
0.707
None of these

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