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

Resistances provide the only opposition to current flow
None of these
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 voltage in a parallel circuit?

The total voltage in a parallel circuit is always less than the value of the smallest voltage
The total voltage in a parallel circuit is equal to the average value of the individual voltages
The total voltage is equal to the sum of the voltages across the individual branches in a parallel circuit
The total voltage of a parallel circuit is the same as the voltages across each branch
None of these

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Electronic Principles
Which one of the following statements most accurately applies to the frequency of a waveform?

The higher the amplitude of a waveform, the higher its frequency
The longer the period of a waveform, the lower its frequency
Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz
The actual frequency of a sine waveform is 1.41 times the working frequency
None of these

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Electronic Principles
The total capacitive reactance of a parallel capacitor circuit is:

None of these
equal to the source voltage divided by total current
equal to the sum of the individual capacitance values
equal to the sum of the individual capacitive-reactance values
less than the capacitance value of the smallest capacitor

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