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A very thin circular disk of radius R = 17.00 cm has charge Q = 50.00...

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Physics

A very thin circular disk of radius R = 17.00 cm has charge Q =50.00 mC uniformly distributed on its surface. The disk rotates ata constant angular velocity ? = 5.00 rad/s around the z-axisthrough its center. Calculate the magnitude of the magnetic fieldstrength on the z axis at a distance d = 1.700 × 10^3 cm from thecenter. Note that d >> R.

Answer & Explanation Solved by verified expert
3.9 Ratings (487 Votes)
Break up the disk into a series of loops of infinitesimal widthA given loop of radius r and thickness dr will have a total areadA2r dr and thus contain a total charge dQ    See Answer
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