An isolated, irregularly shaped piece of platinum carries -8.03 * 109 C of charg

Question

An isolated, irregularly shaped piece of platinum carries -8.03 * 109 C of charge and is in electric equilibrium The size of this body is about 4 mm. When the electric potential at some point on the metals surface has the value V, the potential at a different point on the surface (indicate one): When the electric field strength at some point on the body's surface has the value E. the field strength at a different poM on the surface Calculate the potential at a distance of 6 25 m from the center of the charged piece of platinum.

Explanation / Answer

a) Equals V. [Metal surface has same potential throughout] b) Differ from E. [E may or may not be equal. It depends on Geometry] c) V = K*Q/R ; K=9*10^9 = -11.5632 Volts

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