Two infinite conducting plates 1 and 2 are separated by a distance l. A point charge q is located between the plates at a distance x from plate 1. Find the charges induced on each plate.
q1=−q(l−x)/l,q2=−qx/l. Instruction. If the charge q is imagined to be uniformly spread over the plane passing through that charge and parallel to the plates, the charges q l and q 2 remain, obviously, unchanged. What changes is only their distribution, and the electric field becomes easy to calculate.