A conducting disc of conductivity σ has a radius ‘a’ and thicknes – InterviewSolution

1.	A conducting disc of conductivity σ has a radius ‘a’ and thickness ‘t’. If the magnetic field B is applied in a direction perpendicular to the plane of the disc that changes with time at the rate of dBdt=α, then calculate the rate of heat dissipated in the disc due to the induced current.
Answer» A conducting disc of conductivity $σ$ has a radius ‘a’ and thickness ‘t’. If the magnetic field B is applied in a direction perpendicular to the plane of the disc that changes with time at the rate of $\frac{d B}{d t} = α$ , then calculate the rate of heat dissipated in the disc due to the induced current.

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