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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit and Circuit Theory
Power factor of the following circuit will be zero

Resistance
Capacitance
Both of the listed here
Inductance

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AC Fundamentals, Circuit and Circuit Theory
The time constant of a series R-C circuit is given by

RC
R2C
R/C
RC2

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AC Fundamentals, Circuit and Circuit Theory
All the rules and laws of D.C. circuit also apply to A.C. circuit containing

Inductance only
Capacitance only
All above
Resistance only

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AC Fundamentals, Circuit and Circuit Theory
In a parallel R-C circuit, the current always _________the applied voltage.

Leads
Lags
None of the listed here
Remains in phase with

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AC Fundamentals, Circuit and Circuit Theory
Pure inductive circuit takes power from the A.C. line when

Applied voltage decreases but current increases
Applied voltage increases but current decreases
Both applied voltage and current decrease
Both applied voltage and current increase

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AC Fundamentals, Circuit and Circuit Theory
The r.m.s. value and mean value is the same in the case of

Half wave rectified sine wave
Triangular wave
Sine wave
Square wave

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