P23_022 - 22. We find the maximum by differentiating Eq....

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Unformatted text preview: 22. We find the maximum by differentiating Eq. 23-16 and setting the result equal to zero. d dz √ which leads to z = R/ 2. qz 3/ 2 4πε0 (z 2 + R2 ) = R 2 − 2z 2 q =0 4πε0 (z 2 + R2 )5/2 ...
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