Each of the dots represent a point of a circle charge of 6uC. Four dots lie on t

Question

Each of the dots represent a point of a circle charge of 6uC. Four dots lie on thre circumference of a circle withe r=100 nm and one lies on the circls center.

A) what is the electric potential qt the center charge?

B) what is the particles electrostatic potential energy?

Suppose the charge configuration is enclosed by a conducting shell with a finite thikness and an outer radius of 200nm. Find an expressionfor the E filed everywhere outside the shell.

The picture is the same as the dice with 5 dots on it

Explanation / Answer

a) a) electric potential = 216 *10^10 b) electrostatic energy = 1296 *10^4

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