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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit and Circuit Theory
For a sine wave with peak value Imax the r.m.s. value is

0.9
0.707
0.5 Imax
1.414 Imax

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

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AC Fundamentals, Circuit and Circuit Theory
For a frequency of 200 Hz, the time period will be

0.05 s
0.0005 s
0.005 s
0.5 s

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

The current is in phase with the voltage
The current leads the voltage by 90°
The current can lead or lag by 90°
The current lags behind the voltage by 90°

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

Very high
Very low
Low
High

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AC Fundamentals, Circuit and Circuit Theory
Inductance affects the direct current flow

Only at the time of turning off
Only at the time of turning on
At the time of turning on and off
At all the time of operation

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MORE MCQ ON AC Fundamentals, Circuit and Circuit Theory

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