Hello, 4 charges of equal magnitude are placed on the corners of a square of length a. The two charges at the top of the square are negative, while the two charges at the bottom of the square are positive.
what is the magnitude of electric field at the centre of the square. Ok ive done this part i have [q(2)^(0.5)]/(8.pi.eplion.(0.5)a^2) in a verical (upwards direction).
what direction would an electron accelerate if placed in the centre of the square? im not too sure on this, does an electron acelerate in a direction opposite to the resultant elecric field, since electric field goes from positive to negative.