The voltage and current at the terminals of the circuit element in the figure are zero for t < 0.
For t >= 0 they are
v= 65 65e^(1000t) V
i=30e^(1000t) mA
– +—> i (goes into terminal 1)
p_max= ?
Total energy delivered= ?
Thanks
2 Answers

P=v i. Multiple them together, take the derivative and set it equat to zero. Then solve for P. In your case, by inspection, we know that v and i are at their maximum values at t=0. vmax=65, imax=.030 Pmax=1.95 watts.

properly bear in mind the place skill element got here from. For AC circuit P=IVcostheta, the place the importance of cos theta is the skill element. on the grounds that cosine varies from a million to a million, the skill element varies from 0 to a million.