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AC Fundamentals, Circuit and Circuit Theory

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

90°
180°
360°
0°

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AC Fundamentals, Circuit and Circuit Theory
At __________ frequencies the parallel R-L circuit behaves as purely resistive.

Low
High
Very low
Very high

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

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

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AC Fundamentals, Circuit and Circuit Theory
Which of the following statements pertains to resistors only?

Connecting them in parallel increases the total value
Oppose sudden changes in voltage
Can dissipate considerable amount of power
Can act as energy storage devices

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AC Fundamentals, Circuit and Circuit Theory
In a pure resistive circuit

None of the listed here
Current lags behind the voltage by 90°
Current is in phase with the voltage
Current can lead or lag the voltage by 90°

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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.

100 n
25 JT
5 n
50 jt

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