12 Physics Electromagnetic Induction - Set No : 30 Question No :9
Question No : 9
| A short-circulated coil is placed in a time-varying magnetic field. Electrical power is dissipated due to the current induced in the coil. If the number of turns were to be quadrupled and the wire radius halved, the electrical power dissipated would be |
| a) | Halved | b) | The same |
| c) | Doubled | d) | Quadrupled |
Answer No : 9
(b)Power  hence  where   Also  Where  resistance,  radius,  length |