Question

ABCD is a square of side 0.2 m. Charges of 2 x 10^-9,4 x 10^-9,8 x 10^-9 C are placed at the corners A, B and C respectively. Calculate the work required to transfer a charge of 2 x 10^-9 C from D to the centre 0 of the square.
​

Answer 1

Answer:

I doesn't understand the question