Electronic Principles
Which one of the following statements is true for the voltage in a parallel RL circuit?

None of these
The voltage always has the same amplitude and phase for every part of the circuit
The total voltages is less than the sum of the voltages across the resistance and inductance
The total voltage is equal to the sum of the voltages across the resistance and inductance
The total voltage lags the total current by less than 90

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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
cuts the current through the inductors one-half
None of these
has no effect on the current through the inductors
doubles the amount of current through the inductors

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