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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit and Circuit Theory
Power factor of the following circuit will be zero

Resistance
Capacitance
Both of the listed here
Inductance

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AC Fundamentals, Circuit and Circuit Theory
A sine wave has a frequency of 50 Hz. Its angular frequency is __________ radian/second.

50 jt
5 n
100 n
25 JT

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AC Fundamentals, Circuit and Circuit Theory
The transient currents are associated with the

Resistance of the circuit
Changes in the stored energy in the inductors and capacitors
Applied voltage to the circuit
Impedance of the circuit

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AC Fundamentals, Circuit and Circuit Theory
The main cause of silting up a channel,

Non-regime section
All of these
Inadequate slope
Defective head regulator

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

kW
kVAR
kV
kVA

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AC Fundamentals, Circuit and Circuit Theory
The phase difference between voltage and current wave through a circuit element is given as 30°. The essential condition is that

Both waves must have same frequency
None of these
Both waves must have identical peak values
Both waves must have zero value at the same time

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