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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
111 V
100 V
141.4 V

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AC Fundamentals, Circuit and Circuit Theory
The main cause of silting up a channel,

Non-regime section
All of these
Inadequate slope
Defective head regulator

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AC Fundamentals, Circuit and Circuit Theory
The apparent power drawn by an A.C. circuit is 10 kVA and active power is 8 kW. The reactive power in the circuit is

16 kVAR
8 kVAR
10 kVAR
12 kVAR

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AC Fundamentals, Circuit and Circuit Theory
Form Factor is the ratio of

Average value/peak value
Average value/r.m.s. value
r.m.s. value/peak value
r.m.s. value/average value

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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

Apparent power
Active power
None of the listed here
Reactive power

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AC Fundamentals, Circuit and Circuit Theory
In any A.C. circuit always

Reactive power is more than actual power
Apparent power is more than actual power
Reactive power is more than apparent power
Actual power is more than reactive power

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