Question: In an alternating current (ac) circuit, the instantaneous power p at time t is given by Show that this is equivalent to p(t) = V

In an alternating current (ac) circuit, the instantaneous power p at time t is given by

o sin²(@t) – V mlm sin o sin(@t) cos(ot)| p(t) = V mIm cos


Show that this is equivalent to

p(t) = Vm Im, sin(ωt) sin(ωt – φ)

o sin(@t) V mlm sin o sin(@t) cos(ot)| p(t) = V mIm cos

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