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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit and Circuit Theory
The peak value of a sine wave is 200 V. Its average value is

200 V
141.4 V
282.8 V
127.4 V

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

Minimum
Maximum
Zero
None of these

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AC Fundamentals, Circuit and Circuit Theory
The phase difference between voltage and current wave through a circuit element is given as 30°. The essential condition is that

None of these
Both waves must have identical peak values
Both waves must have zero value at the same time
Both waves must have same frequency

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AC Fundamentals, Circuit and Circuit Theory
The safest value of current the human body can carry for more than 3 second is

5 mA
4 mA
9 mA
15 mA

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

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

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

Resistance
Inductance
Capacitance
Conductance

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