Electronic Principles
Which one of the following statements most accurately describes the nature of inductive reactance?

Inductive reactance is an opposition to current flow in ac circuits
Inductive reactance is an opposition to current flow in dc circuits
Inductive reactance is a force that tends to overcome the effects of counter emf
Inductive reactance is another term for counter emf
None of these

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

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

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Electronic Principles
The rms value of a sine waveform is:

the number of cycles completed in one second
equal to 0.707 times the peak amplitude
the time required to complete one full cycle
equal to 1.41 times the peak amplitude
None of these

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Electronic Principles
The total capacitance of a series capacitor circuit is:

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

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