Consider the situation shown in figure. The frame is made of the same material and has a uniform cross-section area everywhere. Calculate the amount of heat flowing per second through a cross section of the bent part if the total heat taken out per second from the end at `100^(@)C` is `130J` .

Answer

3

Explanation

`R_(1) =` thermal resistance of bent part
`= (60)/(KA), R_(2) = (50)/(KA)`
`((R_(2))/(R_(1)+R_(2))) Q = 60 J//s rArr Q = 132 J//s`