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

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

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Electronic Principles
Which one of the following statements is true?

Power dissipation of a pure capacitor increases with operating frequency
There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency
All of these
Power dissipation of a pure capacitor decreases with operating frequency
None of these

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

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