Electronic Principles
The peak value of a sine waveform is:

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

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Electronic Principles
Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage?

The voltage reverses polarity periodically
The voltage remains at one polarity but changes value periodically
None of these
The voltage causes current to flow in two directions at the same time
The voltage remains at one polarity and at a steady level

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Electronic Principles
A farad is defined as the amount of capacitance necessary for:

storing 1 V for 1 second
changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing
dissipating 1 W of power
None of these
causing an ac phase shift greater than 90 degree

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