Question

what are the magnitude and direction of the electric field at center of the square in fig... if q=1.0*10*-8c and a=5.0cm?

Answer 1

−−→ENet=7.19×104⋅√2j=1.02× 105j. Explanation: This can be solved easily if we focus on the physics first. ... net field at center is equivalent to a single charge q of −108C at the bottom ...