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Question
An alternating current of frequency 50 Hz has the peak value as 14.14 A. The time taken by the alternating current in reaching from zero to maximum value and r.m.s. value of current will be respectively ____________.
Options
0.025 s, 5A
0.005 s, 5A
0.025 s, 10A
0.005 s, 10A
MCQ
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Solution
An alternating current of frequency 50 Hz has the peak value as 14.14 A. The time taken by the alternating current in reaching from zero to maximum value and r.m.s. value of current will be respectively 0.005 s, 10A.
Explanation:
`"f" = 50 "Hz, T" = 1/50 "s" = 0.02 "s"`
Time taken to reach from zero to maximum value is
`"t" = "T"/4 = 0.02/4 = 0.005 "s"`
`"I"_"rms" = "I"_0/sqrt2 = 14.14/1.414 = 10 "A"`
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Types of AC Circuits
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