Question

Four point charges qA = 2 µ C and qB = -5 µ C, qC=

2 µ c and qD = -5 µ c are located at the corners of a

square A B C D of side 10 cm. What is the force on a

charge of 2 µ c placed at the centre of the square?​

Answer 1

Answer:

I don't understand the question