The figure shows two concentric rings, of radii R and R\' = 3.58R, that lie on t

Question

The figure shows two concentric rings, of radii R and R' = 3.58R, that lie on the same plane. Point P lies on the central z axis, at distance D = 2.73R from the center of the rings. The smaller ring has uniformly distributed charge Q = 6.18 Ý 10-6 C. What is the uniformly distributed charge on the larger ring if the net electric field at P is zero?

The figure shows two concentric rings, of radii R and R' = 3. 58R, that lie on the same plane. Point P lies on the central z axis, at distance D = 2. 73R from the center of the rings. The smaller ring has uniformly distributed charge Q = 6. 18 Ã 10-6 C. What is the uniformly distributed charge on the larger ring if the net electric field at P is zero?

Explanation / Answer

answer is

-3.713 * Q = -3.713 *6.18*10^-6 = -22.95*10^-6 C

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