Physics-
General
Easy
Question
Six identical conducting rods are joined as shown in figure. Points A and D are maintained at temperatures 200°C and 20°C respectively. The temperature of junction B will be
- 120°C
- 100°C
- 140°C
- 80°C
The correct answer is: 140°C
Equivalent electrical circuit will be as shown in figure.
Temperature difference between A and D is 180°C which is equally distributed in all the rods. Therefore, temperature difference between A and B will be 60°C or temperature of B should be 140°C
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