Electronic Principles
The peak value of a sine waveform is:

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

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Electronic Principles
Which one of the following phrases most accurately describes a purely capacitive circuit?

None of these
Resistances provide the only opposition to current flow
Combinations of resistance and capacitive reactance provide any opposition to current flow
The ac voltage leads the current by 90 degree
Capacitive reactance provides the only opposition to current flow

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Electronic Principles
Which one of the following statements is true for the impedance of a series RC circuit?

The impedance is greater than the sum of the resistance and capacitive reactance
The impedance is less than the sum of the resistance and capacitive reactance
None of these
The impedance is equal to the sum of the resistance and capacitive reactance
The impedance is greater than either the resistance or capacitive reactance but less than their sum

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