Question

4c and 16 c are two charges placed at distance ' r' m find and which distance from bigger charge resultant intensity is zero ​

Answer 1

Answer:

2r/3 mtrs. from bigger charge.

Explanation:

In the proof I've actually considered the point of zero intensity 'P' on the straight line joining two charges, with a length 'r' mtrs. However, to be precise, the point's locus is a straight line passing through pt. P, perpendicular to line joining the 2 Charges.