AC Fundamentals, Circuit and Circuit Theory
A pure inductance connected across 250 V, 50 Hz supply consumes 100 W. This consumption can be attributed to

The current flowing in the inductor
The reactance of the inductor
The statement given is false
The big size of the inductor

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AC Fundamentals, Circuit and Circuit Theory
In a R-L-C circuit

All of the listed here
Power is consumed in resistance and is equal to IR
Exchange of power takes place between capacitor and supply line
Exchange of power takes place between inductor and supply line

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AC Fundamentals, Circuit and Circuit Theory
The r.m.s. value of alternating current is given by steady (D.C.) current which when flowing through a given circuit for a given time produces

The less heat than produced by A.C. flowing through the same circuit
None of these
The more heat than produced by A.C. when flowing through the same circuit
The same heat as produced by A.C. when flowing through the same circuit

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AC Fundamentals, Circuit and Circuit Theory
A phasor is

A line representing the magnitude and direction of an alternating quantity
An instrument used for measuring phases of an unbalanced 3-phase load
A colored tag or band for distinction between different phases of a 3-phase supply
A line which represents the magnitude and phase of an alternating quantity

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