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

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

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

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Electronic Principles
When a parallel RLC circuit is operating at its resonant frequency:

capacitive reactance is greater than the inductive reactance
inductive reactance is greater than the capacitive reactance
None of these
inductive reactance is equal to the capacitive reactance
the difference between inductive and capacitive reactance is equal to the resistance

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