Question

The charge on a metallic sphere of radius 9cm is 4×10 to the power -6. Calculate the potential energy of charge on the conductor.​

Answer 1

The potential energy of charge on the conductor is $4\times 10^5\ J$.

Explanation:

It is given that

Charge on the metallic sphere, $q=4\times 10^{-6}\ C$

Radius of the sphere, r = 9 cm = 0.09 m

The potential energy of charge on the conductor is given by the following relation as :

$E=\dfrac{kQ}{r}$

$E=\dfrac{9\times 10^9\times 4\times 10^{-6}}{0.09}$

$E=4\times 10^5\ J$

So, the potential energy of charge on the conductor is $4\times 10^5\ J$. Hence, this is the required solution.

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Electric potential energy

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