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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit and Circuit Theory
Capacitors for power factor correction are rated in

kVA
kV
kVAR
kW

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AC Fundamentals, Circuit and Circuit Theory
The best place to install a capacitor is

Across the terminals of the inductive load
Far away from the inductive load
Very near to inductive load
Any of the listed here

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AC Fundamentals, Circuit and Circuit Theory
In AC. circuits, laminated iron is invariably used in order to

Increase heat radiation
Reduce circuit permeability
Make assembly cheap and easier
Reduce eddy current loss

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AC Fundamentals, Circuit and Circuit Theory
The time constant of a series R-C circuit is given by

RC2
RC
R/C
R2C

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AC Fundamentals, Circuit and Circuit Theory
In an AC. circuit, a low value of kVAR compared with kW indicates

Low efficiency
Maximum load current
High power factor
Unity power factor

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AC Fundamentals, Circuit and Circuit Theory
In a highly capacitive circuit the

Reactive power is more than the actual power
Apparent power is equal to the actual power
Actual power is more than its reactive power
Reactive power is more than the apparent power

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