Practicing Success
The current and voltage in ac circuit are given by $I=5 \sin \left(100 t-\frac{\pi}{2}\right) A$ and $V=200 \sin (100 t) ~V$. The power dissipated in the circuit is |
20 W 40 W 0 1000 V |
0 |
$ P = V_{rms}I_{rms cos\phi$ $\phi = \frac{\pi}{2}$ $\Rightarrow P = 0$ |