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AC Fundamentals, Circuit and Circuit Theory

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

Leads
Remains in phase with
None of the listed here
Lags

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AC Fundamentals, Circuit and Circuit Theory
The ratio of active power to apparent power is known as factor.

Power
Form
Demand
Load

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AC Fundamentals, Circuit and Circuit Theory
In an A.C. circuit power is dissipated in

Capacitance only
None of the listed here
Resistance only
Inductance only

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

RC
R/C
RC2
R2C

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AC Fundamentals, Circuit and Circuit Theory
A pure capacitor connected across an A.C. voltage consumed 50 W. This is due to

The size of the capacitor being quite big
The capacitive reactance in ohms
The current flowing in capacitor
The statement is incorrect

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AC Fundamentals, Circuit and Circuit Theory
Inductance of coil

Is unaffected by the supply frequency
Decreases with the increase in supply frequency
Increases with the increase in supply frequency
Becomes zero with the increase in supply frequency

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