AC Fundamentals, Circuit and Circuit Theory
The frequency of an alternating current is

The number of electrons passing through a point in one second
The number of cycles generated in one minute
The speed with which the alternator runs
The number of waves passing through a point in one second

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AC Fundamentals, Circuit and Circuit Theory
A phasor is

A line which represents the magnitude and phase 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 representing the magnitude and direction 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,

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

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