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AC Fundamentals, Circuit and Circuit Theory

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

Very low
High
Very high
Low

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AC Fundamentals, Circuit and Circuit Theory
In a series resonant circuit, the impedance of the circuit is

Minimum
Zero
Maximum
None of these

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AC Fundamentals, Circuit and Circuit Theory
When an alternating current passes through an ohmic resistance the electrical power converted into heat is

Active power
Reactive power
None of the listed here
Apparent power

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AC Fundamentals, Circuit and Circuit Theory
All definitions of power factor of a series R-L-C circuit are correct except

Ratio of W and VA
Ratio of net reactance and impedance
Ratio of kW and kVA
Ratio of J and Z

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AC Fundamentals, Circuit and Circuit Theory
What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value?

45°
30°
90°
180°

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AC Fundamentals, Circuit and Circuit Theory
Which of the following circuit component opposes the change in the circuit voltage ?

Inductance
Resistance
Capacitance
Conductance

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