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

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

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Electronic Principles
For a pure capacitor:

None of these
ac current and voltage are exactly in phase
ac current lags the voltage by 90 degree
ac current is converted to dc voltage
ac current leads the voltage by 90 degree

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

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

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Electronic Principles
Which one of the following phrasers best describes flux density?

The force that maintains lines of force
None of these
The opposition to a build-up of magnetic fields
The rate of change of the number of lines of magnetic force
The concentration of lines of magnetic force

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