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Statement of a problem № 3863

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A metal disc of radius 0.1 m spins about a horizontal axis lying in the mag- netic meridian at a speed of 5 rev/s. If the horizontal component of the earth's field is B = 2x10^(-5) Wb/m2 , calculate the potential difference between the centre and the outer edge of the disc.

Solution:
A metal disc of radius 0.1 m spins about a horizontal axis lying in the mag- net

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