Physics-
General
Easy
Question
Five identical rods are joined as shown in figure. Point A and C are maintained at temperature 120°C and 20°C respectively. The temperature of junction B will be
- 100°C
- 80°C
- 70°C
- 0°C
The correct answer is: 70°C
If thermal resistance of each rod is considered R then, the given combination can be redrawn as follows
(Heat current)AC = (Heat current)AB
Þ 
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