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Electronic Principles

Electronic Principles
How may valence electrons does a silicon atom have?

4
1
None of these
2

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Electronic Principles
What causes the depletion layer?

None of these
Doping
Barrier potential
Recombination
Ions

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Electronic Principles
Which one of the following equations most directly determines the power dissipation of a resistance when you know the voltage drop and amount of resistance?

None of these
P = IE
I = P/E
P = E2/R
P = I2R

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Electronic Principles
If a transistor operates at the middle of the load line, an increase in the current gain will move the Q point

off the load line
nowhere
down
None of these
up

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

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

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

commutator
armature
loop
brush
None of these

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