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

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

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Electronic Principles
The total inductance of a series inductor circuit is:

equal to the source voltage divided by total current
None of these
equal to the sum of the individual inductive-reactance values
less than the value of the smallest inductor
equal to the sum of the individual inductance values

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