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

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

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Electronic Principles
Which one of the following statements best applies to a series RLC circuit?

None of these
All of these
The current waveform for each component always has the same amplitude and phase as the applied current
The voltage waveform for each component always has the same amplitude and phase as the applied voltage
The sum of the current is always less than the applied current

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Electronic Principles
Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage?

The voltage remains at one polarity and at a steady level
The voltage remains at one polarity but changes value periodically
The voltage causes current to flow in two directions at the same time
None of these
The voltage reverses polarity periodically

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