> Q. Six identical conducting rods are joined as shown in figure. Points A and D are maintained at 200°C and 20°C respectively. The temperature of junction B will be – LIVE ANSWER TODAY

Q. Six identical conducting rods are joined as shown in figure. Points A and D are maintained at 200°C and 20°C respectively. The temperature of junction B will be

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Six identical conducting rods are joined as shown in figure. Points A and D are maintained at 200°C and 20°C respectively. The temperature of junction B will be

Solution:

The equivalent electrical circuit of the arrangement is shown in figure.

Temperature difference between the end points A and D = 200 – 20 = 180°C

As the resistances for the three parts are equal, the temperature difference must be distributed equally in the three parts (= 180/ 3 = 60°C)

$ thereforequad$ Temperature of B = 200°C – 60° = 140°C.

Solution Image

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