If the electric field strength of air is ` 3 xx 10 ^(6) V//m`, what will be the maximum potential at the surface of a metal sphere of radius 1m.

Explanation

To find the maximum potential at the surface of a metal sphere given the electric field strength, we can use the relationship between electric field (E) and electric potential (V). The formula that relates electric field to potential difference is:

\[ E = -\frac{dV}{dr} \]

For a uniformly charged sphere, the electric field outside the sphere is given by:

\[ E = \frac{V}{r} \]

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