Electronic Principles
The peak value of a sine waveform is:

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

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Electronic Principles
Which one of the following is a statement of KirchhofFs voltage law?

The algebraic sum of voltages entering and leaving a point is equal to zero
The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it
The total voltage in a parallel circuit is less than the value of the smallest voltage
None of these
The algebraic sum of voltages in a loop is equal to zero

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

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

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