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Earlier discussion
2 older comments kept for context.
Oluwaseun Adeyemi
An a.c current is usually expressed as I = Io sin wt; and comparing this with the given current I = 10sin (120π)t, => Io = 10.
and power in an a.c circuit is given as:
P = I2R
= (102 x 12)
= 1200W
Kaycee
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