A circular copper disc of 10 cm radius r...

A circular copper disc of 10 cm radius rotates at `20 pi` `radian//sec` about an axis through its centre and perdendicular to the disc. A uniform magnetic field of 0.2 T acts perpendicular to the disc. Calculate the potential difference developed between axis of the disc and the ring. What is the induced current if resistance of disc is 2 ohm ?

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A circular copper disc of 10 cm radius rotates at 20 pi radian//sec about an axis through its centre and perdendicular to the disc. A uniform magnetic field of 0.2 T acts perpendicular to the disc. Calculate the potential difference developed between axis of the disc and the rim. What is the induced current if resistance of disc is 2 ohm ?

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