Identical charges q=+5.00μC are placed at opposite corners of a square that has sides of length 8.00 cm. Point A is at one of the empty corners, and point B is at the center of the square. A charge q0
=−3.00μC is placed at point A and moves along the diagonal of the square to point B. (a) What is the magnitude of the net electric force on q0 when it is at point A ? Sketch the placement of the charges and the direction of the net force. (b) What is the magnitude of the netectric force on q0
when it is at point B ? (c) How much work does the electric force do on q0 during its motion from A to B ? Is this work positive or negative? When it goes from A to B, does q0 move to higher potential or to lower potential?