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The two ends of a rod of length L and a ...

The two ends of a rod of length L and a uniform cross -secontional area A are kept at two temperatures `T_(1)` and `T_(2) (T_(1) gt T_(2))`. The rate of heat tranfer, `(dQ)/(dt)`, through the rod in a steady state is given by

A

`(dQ)/(dt)=(k(T_(1)-T_(2)))/(LA)`

B

`(dQ)/(dt)=kLA(T_(1)-T_(2))`

C

`(dQ)/(dt)=(kA(T_(1)-T_(2)))/(L)`

D

`(dQ)/(dt)=(kL(T_(1)-T_(2)))/(A)`

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