Lessons

Eamcet Physics
2 nd Year : Unit 4.1 ( Alternating Current ) - Alternating Currents

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Q.

The potential difference V and the current i flowing through an instrument in an ac circuit of frequency f are given by V=5cosωt volts and I = 2 sin ωt amperes (where ω = 2πf). The power dissipated in the instrument is

View Answer

Correct choice: A

Explanation:

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