Two particles with charges +6e and -6e are initially very far apart (effectively an infinite distance apart). they are then fixed at positions that are 5.61 x 10^-12 m apart. what is epefinal - epeinitial, which is the change in the electric potential energy?

Explanation:

Given charges are:

The electric potential energy of a charge due to the electric field of another charge is given by

where,

When the charges are infinite distance apart, ,

When the charges are apart, ,

Here, e is the charge on one electron, such that, .

Therefore,

Thus,

the answer is a. at the equator

measure their densities same density, same sub