A brass rod with a length of 30.0 cm is placed side by side with an aluminum rod

Question

A brass rod with a length of 30.0 cm is placed side by side with an aluminum rod with a length of 30.0 cm and this system is placed between a hot temperature of 100 A brass rod with a length of 30.0 cm is placed side by side with an aluminum rod with a length of 30.0 cm and this system is placed between a hot temperature of 100 A brass rod with a length of 30.0 cm is placed side by side with an aluminum rod with a length of 30.0 cm and this system is placed between a hot temperature of 100 A brass rod with a length of 30.0 cm is placed side by side with an aluminum rod with a length of 30.0 cm and this system is placed between a hot temperature of 100 A brass rod with a length of 30.0 cm is placed side by side with an aluminum rod with a length of 30.0 cm and this system is placed between a hot temperature of 100

Explanation / Answer

total heat flow is the some of heat flow from both the rods

(rac{dQ}{dt} = rac{kappa A(Delta T)}{L})

for both the rods given

(rac{dQ_{total}}{dt} = rac{90}{0.3}(20 imes100+30 imes 230 ) imes 10^{-4}= 267W)

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