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

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

The equivalent resistance is greater than any one of the resistors
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

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