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Electronic Principles

Electronic Principles
The barrier potential accross each depletion layer is

None of these
20 V
0.8 V
0.7 V

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Electronic Principles
An audio transformer has a turn ratio of 9, What is its impedance ratio?

6
None of these
85
9
81

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Electronic Principles
What are the main parts of an atom?

None of these
Electrons, ions, and neutrons
Electrons, protons, and neutrons
Electrons, protons, and ions
Protons only

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Electronic Principles
Doubling the operating voltage of a purely capacitive circuit:

has no effect on the capacitive reactance
cuts the capacitive reactance in half
doubles the amount of capacitive reactance
None of these
multiplies the capacitive reactance by 7

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Electronic Principles
What is one important thing transistors do?

Rectify line voltage
None of these
Emit light
Amplify weak signals
Regulate voltage

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

Applied voltage
None of these
Breakdown voltage
Forward voltage
Barrier potential

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