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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit and Circuit Theory
The apparent power drawn by an A.C. circuit is 10 kVA and active power is 8 kW. The reactive power in the circuit is

10 kVAR
12 kVAR
8 kVAR
16 kVAR

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AC Fundamentals, Circuit and Circuit Theory
In a purely inductive circuit

None of the listed here
Apparent power is zero
Actual power is zero
Reactive power is zero

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AC Fundamentals, Circuit and Circuit Theory
Which of the following coil will have large resonant frequency?

A coil with large distributed capacitance
A coil with large resistance
A coil with low resistance
A coil with low distributed capacitance

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AC Fundamentals, Circuit and Circuit Theory
The product of apparent power and cosine of the phase angle between circuit voltage and current is

Volt-amperes
True power
Instantaneous power
Reactive power

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AC Fundamentals, Circuit and Circuit Theory
Two waves of the same frequency have opposite phase when the phase angle between them is

90°
360°
0°
180°

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

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

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