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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit and Circuit Theory
Form factor for a sine wave is

1.414
0.707
1.11
0.637

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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

111 V
100 V
141.4 V
282.8 V

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AC Fundamentals, Circuit and Circuit Theory
Pure inductive circuit takes power from the A.C. line when

Both applied voltage and current decrease
Both applied voltage and current increase
Applied voltage decreases but current increases
Applied voltage increases but current decreases

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AC Fundamentals, Circuit and Circuit Theory
At very low frequencies a series R-C circuit behaves as almost purely

None of the listed here
Resistive
Capacitive
Inductive

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AC Fundamentals, Circuit and Circuit Theory
The power is measured in terms of decibels in case of

Auto transformers
Current transformers
Electronic equipment
Transformers

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

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

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