JEE Mains Model Paper 24

Two conducting large plate P1 & P2 are placed parallel to each other at very smallseparation ‘d’. The plate area of either face of plate is A. A charge +2Q is given toplate P1 & -Q to the plate P2 (neglect ends effects) . If plate P1 & P2 are now connectedby conducting wire, then total amount of heat produced is