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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit and Circuit Theory
In the case of an unsymmetrical alternating current the average value must always be taken over

The quarter cycle
Unsymmetrical part of the wave form
The half cycle
The whole cycle

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AC Fundamentals, Circuit and Circuit Theory
In a pure capacitive circuit if the supply frequency is reduced to 1/2, the current will

Be doubled
Be reduced by half
Be reduced to one fourth
Be four times at high

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AC Fundamentals, Circuit and Circuit Theory
In a pure inductive circuit

The current lags behind the voltage by 90°
The current is in phase with the voltage
The current leads the voltage by 90°
The current can lead or lag by 90°

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AC Fundamentals, Circuit and Circuit Theory
The purpose of a parallel circuit resonance is to magnify

Power
Current
Frequency
Voltage

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AC Fundamentals, Circuit and Circuit Theory
In a circuit containing R, L and C, power loss can take place in

Capacitance only
Resistance only
All of the listed here
Inductance only

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AC Fundamentals, Circuit and Circuit Theory
Magnitude of current at resonance in R-L-C circuit

Depends upon the magnitude of R, Land C
Depends upon the magnitude of C
Depends upon the magnitude of R
Depends upon the magnitude of L

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