5.11 Charge Induction by a Potential Patch The square region dened by a 5 x 5 a and a 5 y 5 a in the plane z = 0 is a conductor held at potential (p = V. The rest of the plane z = O is a conductor held at potential (p = 0. The plane 2 = d is also a conductor held at zero potential. Use Green's reciprocity relation to nd the total charge induced on the entire z = 0 plane, // 20 .>