AC Fundamentals, Circuit and Circuit Theory
Pure inductive circuit

None of the listed here
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
Consumes some power on average

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AC Fundamentals, Circuit and Circuit Theory
A phasor is

A line representing the magnitude and direction of an alternating quantity
A line which represents the magnitude and phase of an alternating quantity
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

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AC Fundamentals, Circuit and Circuit Theory
Which of the following refers to a parallel circuit?

The current through each element is same
The voltage across element is in proportion to it's resistance value
The current through any one element is less than the source current
The equivalent resistance is greater than any one of the resistors

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