An alternating current is represented by the equation I = I∫sinπt which of the following equation represents an alternating current of frequency and amplitude twice that of the above current ? | MCQ Hive

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Q An alternating current is represented by the equation I = I∫sinπt which of the following equation represents an alternating current of frequency and amplitude twice that of the above current ?

A A. I = 2i∫sin(πt/2)
B B. I = 2i∫sin(2πt)
C C. I = 2isinπt
D D. I = i∫sin(2πt)

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