AC Fundamentals, Circuit and Circuit Theory
Pure inductive circuit

Takes power from the line during some part of the cycle and then returns back to it during other part of the cycle
Does not take power at all from a line
None of the listed here
Consumes some power on average

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

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