Electronic Principles
The total impedance of a parallel RLC circuit:

always decreases as the applied frequency increases
None of these
is equal to the sum of the values of resistance, inductive reactance and capacitive reactance
always increases as the applied frequency increases
is maximum at the resonant frequency

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

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
cuts the current through the inductors one-half
doubles the amount of current through the inductors
None of these

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