Conducting wires above a conducting plane carry currents I1 and I2 in the directions shown in Fig.

Question:

Conducting wires above a conducting plane carry currents I1 and I2 in the directions shown in Fig. 4-38 (P4.57). Keeping in mind that the direction of a current is defined in terms of the movement of positive charges, what are the directions of the image currents corresponding to I1 and I2?

(b) (a)