1.) The electric field midway between two equal but opposite point charges is 939N/C , and the distance between the charges is 25.2cm What is the magnitude of the charge on each?
a) Calculate the magnitude of the electric field at one corner of a square 1.43 m on a side if the other three corners are occupied by 2.72×10?6C charges.
b) What is the direction of the electric field?