AC Fundamentals, Circuit and Circuit Theory
The inductance of a coil can be increased by

Choosing core material having high relative permeability
Decreasing the diameter of the former
Increasing core length
Decreasing the number of turns

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AC Fundamentals, Circuit and Circuit Theory
Capacitive reactance is more when

Capacitance is less and frequency of supply is more
Capacitance is more and frequency of supply is less
Capacitance is more and frequency of supply is more
Capacitance is less and frequency of supply is less

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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 line representing the magnitude and direction of an alternating quantity
A colored tag or band for distinction between different phases of a 3-phase supply

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