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?

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

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Electronic Principles
The peak value of a sine waveform is:

the amplitude at 1.41 times the maximum value
the amplitude at 70.7% of the maximum value
the amplitude at 90% of the maximum value
None of these
the maximum positive or negative value

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Electronic Principles
A low-pass filter:

reduces the level of all frequencies by a significant amount
has no effect on ac signals
None of these
passes higher-frequency signals and reduces lower-frequency signals
passes lower-frequency signals and reduces higher-frequency signals

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