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[" A metal disc of radius "'a=25cm'],[" ...

[" A metal disc of radius "'a=25cm'],[" rotates with a constant angular "],[" velocity "],[qquad omega=130rad/sec'" about its "],[" axis "]

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A metal disc of radius R = 25 cm rotates with a constant angular velocity omega = 130 rad s^(-1) about its axis. Find the potential difference between the center and rim of the disc if (a) the external magnetic field is absent, (b) the external uniform magnetic field B = 5.0 mT directed perpendicular to the disc.

A metal disc of radius R = 25 cm rotates with a constant angular velocity omega = 130 rad s^(-1) about its axis. Find the potential difference between the center and rim of the disc if (a) the external magnetic field is absent, (b) the external uniform megnetic field B = 5.0 mT directed perpendicular to the disc.

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