AC Fundamentals, Circuit and Circuit Theory
Capacitive reactance is more when

Capacitance is more and frequency of supply is more
Capacitance is less and frequency of supply is more
Capacitance is more and frequency of supply is less
Capacitance is less and frequency of supply is less

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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

None of these
The less heat than produced by A.C. flowing through the same circuit
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 colored tag or band for distinction between different phases of a 3-phase supply
An instrument used for measuring phases of an unbalanced 3-phase load
A line which represents the magnitude and phase of an alternating quantity
A line representing the magnitude and direction of an alternating quantity

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