AC Fundamentals, Circuit and Circuit Theory
Inductance of coil

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

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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
A line representing the magnitude and direction of an alternating quantity
An instrument used for measuring phases of an unbalanced 3-phase load
A line which represents the magnitude and phase of an alternating quantity

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AC Fundamentals, Circuit and Circuit Theory
An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms,

Both resistance and inductance carry equal currents
The current through the resistance is less
None of the listed here
The current through the resistance is more

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