Physics-
General
Easy
Question
Five rods of same material and same length are joined as shown. Cross-section of rods ab, ad and bc are A, 2A and 3A respectively. Ends a and c are maintained at temperatures 200°C and 0°C respectively.
For what cross-section x of rod dc there will be no heat flow through rod bd.
- 4A
- 2A
- 6A
- 9A
The correct answer is: 9A
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