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

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
None of these
has no effect on the current through the inductors
doubles the amount of current through the inductors

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

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Electronic Principles
For a pure capacitor:

ac current leads the voltage by 90 degree
None of these
ac current is converted to dc voltage
ac current lags the voltage by 90 degree
ac current and voltage are exactly in phase

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