Four point charges are located at the corners of a square with sides of length a . Two of the charges are +q, and two are -q.
Find the magnitude of the net electric force exerted on a charge +Q, located at the center of the square, for the following arrangement of charge: the charges alternate in sign (+q,-q,+q,-q) as you go around the square.
Find the direction of the net electric force exerted on a charge +Q, located at the center of the square, for the following arrangement of charge: the charges alternate in sign (+q,-q,+q,-q) as you go around the square.
Find the magnitude of the net electric force exerted on a charge +Q, located at the center of the square, for the following arrangement of charge: the two positive charges are on the top corners, and the two negative charges are on the bottom corners.
Find the direction of the net electric force exerted on a charge +Q , located at the center of the square, for the following arrangement of charge: the two positive charges are on the top corners, and the two negative charges are on the bottom corners.
1 answer
Part 2: No net direction of translational motion as the net force on +Q is 0
Part 3: F=(4sqrt(2)kqQ)/a^2; use coulomb's law
Part 4: Direction is downwards as the positive forces at the top are repulsive and push away and negative charges on bottom are attractive and pull +Q toward them.