Two conducting large plates P_(1) & P_(2) are placed parallel to each other at very small seperation 'd'. The plate area of either face of plate is A. A charge +2Q is given to plate P_(1) & -Q to the plate P_(2) (neglect ends effects). If plate P_(1) & P_(2) are now connected by conducting wire, then total amount of heat produced is

Two conducting large plates P_(1) & P_(2) are placed parallel to each

1.	Two conducting large plates P_(1) & P_(2) are placed parallel to each other at very small seperation 'd'. The plate area of either face of plate is A. A charge +2Q is given to plate P_(1) & -Q to the plate P_(2) (neglect ends effects). If plate P_(1) & P_(2) are now connected by conducting wire, then total amount of heat produced is
Answer» `(4Q^(2)d)/(3in_(0) A)` `(9Q^(2)d)/(8in_(0) A)` `(3Q^(2) d)/(8 in_(0) A)` None of these Solution :`C=(varepsilon_(0)A)/d U_(i)=(1.5Q)^(2)/(2c)=(2.25Q^(2)d)/(2C)` `Rightarrow U_(i) = (9Q^(2)d)/(8varepsilon_(0)A)` After CONNECTING Heat `=U_(i)-U_(f)=(9Q^(2))/(dvarepsilon_(0)A)`

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