Electronic Principles
The rms value of a sine waveform is:

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

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

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Electronic Principles
Doubling the operating frequency of a purely inductive circuit:

None of these
cuts the current through the inductors one-half
increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit
has no effect on the current through the inductors
doubles the amount of current through the inductors

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