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Electronic Principles

Electronic Principles
What is the power dissipation of a resistance that has 24 V dropped across it and 0.25 A flowing through it?

None of these
64 W
122 W
6 W
3 W

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Electronic Principles
The direction of electron current flow is:

None of these
from neutral to positive
from right to left
from negative to positive
from positive to negative

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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 power dissipation of a resistance when you know the voltage drop and current?

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

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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
None of these
doubles the amount of capacitive reactance
multiplies the capacitive reactance by 7

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Electronic Principles
The direction of conventional current flow is:

from neutral to positive
from negative to positive
from left to right
from positive to negative
None of these

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Electronic Principles
Silicon atoms combine into an orderly pattern called a

Valence orbit
Covalent bond
None of these
Semiconductor
Crystal

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