Question

A charge of 2C is placed on the x-axis at 1m from the origin along -ve x-axis . Infinite number of charges each of magnitude 2C are placed on x-axis at 1m,2m,4m,... from origin along +ve x-axis .The first charge is positive and alternate charges are of opposite in nature . The electric field intensity at the origin​

Answer 1

Explanation:

Infinite charges of magnitude

each are lying at

on

-axis. The value of intensity of electric field at point