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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit and Circuit Theory
The r.m.s. value of half wave rectified sine wave is 200 V. The r.m.s. value of full wave rectified AC. will be

282.8 V
100 V
111 V
141.4 V

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AC Fundamentals, Circuit and Circuit Theory
In a highly capacitive circuit the

Apparent power is equal to the actual power
Actual power is more than its reactive power
Reactive power is more than the apparent power
Reactive power is more than the actual power

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AC Fundamentals, Circuit and Circuit Theory
The frequency of domestic power supply in India is

50 Hz
200 Hz
150 Hz
250 Hz

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

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

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AC Fundamentals, Circuit and Circuit Theory
Wire-wound resistors are unsuitable for use at high frequencies because they

Exhibit unwanted inductive and capacitive effects
Create more electrical noise
Are likely to melt under excessive eddy current heat
Consume more power

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AC Fundamentals, Circuit and Circuit Theory
The form factor is the ratio of

None of these
r.m.s. value to average value
Peak value to r.m.s. value
Average value to r.m.s. value

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