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If an alternating current is represented by i = 10sin⁡314t, where t is in seconds, then its frequency is around:
  • a)
    40 Hz
  • b)
    50 Hz
  • c)
    60 Hz
  • d)
    70 Hz
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
If an alternating current is represented byi = 10sin314t, wheretis in ...
Alternating Current (AC): A.C. means alternating current. It is a current that flow in the positive and negative direction periodically.
General equation of AC is
I = I0Sinωt or 
I = I0Sin2πft
Where, I= peak current., f= frequency, t= time, ω= angular velocity, I= current.
Given: eqn of AC = i =10sin⁡314t
Compare it with the general equation of current


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If an alternating current is represented byi = 10sin314t, wheretis in seconds, then its frequency is around:a)40 Hzb)50 Hzc)60 Hzd)70 HzCorrect answer is option 'B'. Can you explain this answer?
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