Categories > Alternating Current > Alternating Current > The potential difference V and the current i flowing through an instrument in an ac circuit of frequency f are given by $V = 5\cos \omega \,t$ volts and $I = 2\sin \omega t$ amperes (where $\omega = 2\pi f$). The power dissipated in the instrument is

Alternating Current

Question: The potential difference V and the current i flowing through an instrument in an ac circuit of frequency f are given by $V = 5\cos \omega \,t$ volts and $I = 2\sin \omega t$ amperes (where $\omega = 2\pi f$). The power dissipated in the instrument is


1) Zero
2) 10 W
3) 5 W
4) 2.5 W
Solution: Explanation: No Explanation
Alternating Current Voltage Power

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