Question

In a Faraday disc dynamo, a metal disc of radius A rotates with an angular velocity ω about an axis perpendicular to the plane of the disc and passing through its center. The circuit has a total resistance of R. The disc is placed in a magnetic field B acting perpendicular to the plane of the disc.

(1) Determine the induced emf between the rim and the axis of the disc.
(2) Determine the torque in the disc.

Answer 1

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