(a) Find the electric potential, taking zero at infinity, at the upper right corner (the corner without a charge) of the rectangle in Figure P16.13. (y = 3 cm and x = 6 cm)
(b) Repeat if the 2.00 µC charge is replaced with a charge of -2.00 μC.
(c) For the situations in both (a) and (b), how much work should be done to move a +6.0AµC charge from infinity to the upper right hand corner of the rectangle?