How much work is required to be done, in order to bring two charges of magnitude 3C and 5C from a separation of infinite distance to a separation of 0.5 m?

Explanation

`∆E = E_0 – E_g`
`= 0 – [-(9 xx 10^9 xx 5 xx 3)/0.5] = 27 xx 10^10`.
Therefore, `∆E = 27 xx 10^10`.