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A circular copper disc of radius 0.1m rotates at 20π rad/s about an axis perpendicular to the disc through it centre. A uniform magnetic field 0.2T acts perpendicular to the disc.Calculate i) The p.d between axis and the rim.ii) Induced current in the circuit if the resistance of the circuit is 2 ohm. |
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Answer» why so SERIOUS..!!..!!..! |
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