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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit and Circuit Theory
For the same peak value, which of the following wave has the least mean value?

Square wave
Sine wave
Triangular wave
Half wave rectified sine wave

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

282.8 V
141.4 V
127.4 V
200 V

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AC Fundamentals, Circuit and Circuit Theory
A sine wave has a frequency of 50 Hz. Its angular frequency is __________ radian/second.

100 n
5 n
50 jt
25 JT

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AC Fundamentals, Circuit and Circuit Theory
Skin effect occurs when a conductor carries current at _________ frequencies.

High
Very low
Medium
Low

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AC Fundamentals, Circuit and Circuit Theory
Inductance of a coil Varies

Both of the listed here
None of the listed here
Inversely as the length of the iron path
Directly as the cross-sectional area of magnetic core

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AC Fundamentals, Circuit and Circuit Theory
In a pure capacitive circuit if the supply frequency is reduced to 1/2, the current will

Be doubled
Be four times at high
Be reduced to one fourth
Be reduced by half

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