$\"\"$

Two electrons repel each other with a force that varies inversely proportinal to the distance between them.

One electron is fixed at the point $\"\"$ .

Let the second electron at the point $\"\"$ .

Distance between the elecrons is $\"\"$ .

$\"\"$

Where $\"\"$ is a constant of proportionality.

Thus, $\"\"$ .

Find the work done in moving the second electron from $\"\"$ to $\"\"$ .

Work $\"\"$ done by the force as the object is moved from $\"\"$ to $\"\"$ is $\"\"$ .

Here $\"\"$ , $\"\"$ and $\"\"$ .

$\"\"$

$\"\"$ units of work.

$\"\"$

$\"\"$ units of work.