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Electronic Principles

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

volt
None of these
watt
ohm
ampere

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Electronic Principles
Who invented the first junction transistor?

Fisher
Shockley
None of these
Smith
Gomes

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Electronic Principles
What is the turns ratio of a power transformer that shows 50 V at its secondary winding when you apply 150 V to its primary winding?

3
2
43891
None of these
43922

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Electronic Principles
What is one important thing transistors do?

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

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Electronic Principles
Thevenin theorem replaces a complicated circuit facing a load by an

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

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Electronic Principles
A device that converts thermal energy to electrical energy is called a:

piezoelectric devices
None of these
chemical cell
thermocouple
solar cell

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