- #1

- 140

- 5

## Homework Statement

Refer the image.

## Homework Equations

kq1q2/r^2 = F

Potential energy = kq1q1/r

## The Attempt at a Solution

Obviously since both charges are unequal in magnitude option a is incorrect.

Calculating field at large distance r,

E = kq1/r^2 - kq2/r^2

= kq2/r^2

Also potential energy at q1 is lesser than near q2 for negative charge.

So options c,d are correct. However I don't understand how the angle beta can be calculated from the given information.