Question: Solution kQ V = R kQ E = R2 Comparing the two expressions, we see that E = VIR just outside the sphere. Now let

 Solution kQ V = R kQ E = R2 Comparing the

Solution kQ V = R kQ E = R2 Comparing the two expressions, we see that E = VIR just outside the sphere. Now let V = Vmax and require E = Emax 8.0 x 10' N/C R > 0.30 m The minimum radius is 30 cm

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