One end of a metal rod of length 1.0 m a...

One end of a metal rod of length 1.0 m and area of cross section `100 cm^(2)` is maintained at . `100^(@)C`. If the other end of the rod is maintained at `0^(@)C` , the quantity of heat transmitted through the rod per minute is (Coefficient of thermal conductivity of material of rod =`100 W//m-K`)

`3xx10^3`J

`6xx10^3` J

`9xx10^3` J

`12 xx 10^3` J

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Verified by Experts

The correct Answer is:

Rate of heat flow –
`Q/t=(KA(T_1-T_2))/(l)=(100xx100xx10^(-4)(100-0))/(1)`
`implies Q/t=100 J//sec = (100)/(((1)/(60)))J //"min"`
`implies Q/t=6 xx 10^3 J//` min

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