Electronic Principles
The peak value of a sine waveform is:

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

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

None of these
Combinations of resistance and inductive reactance provide any opposition to current flow
Resistances provide the only opposition to current flow
Inductive reactance provides the only opposition to current flow
The ac voltage lags the current by 90 degree

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Electronic Principles
The period of a waveform is:

equal to 0.707 times the peak amplitude
the time required to complete one full cycle
the number of cycles completed in one second
None of these
the time required for the voltage to rise from 10% to 90% of the peak amplitude

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