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In a steady state of thermal conduction,...

In a steady state of thermal conduction, temperature of the ends A and B of a 20 cm long rod are `100^(@)C` and `0^(@)C` respectively. What will be the temperature of the rod at a point at a distance of 6 cm from the end A of the rod

A

`45^(@) C`

B

`55^(@) C`

C

`5^(@) C`

D

`65^(@) C`

Text Solution

Verified by Experts

The correct Answer is:
B
`H = (100-0)/R_(AB) =` Heat current `= 100/R_(AB) `
`100-theta_(c) = H.R_(AC) = 100/R_(AB).R_(AC) = (100xx9)/20 = 45`
`therefore theta_(c)=55^(@)C`
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DC PANDEY-CALORIMETRY AND HEAT TRANSFER-Check points 16.3
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  7. The unit of thermal conductivity is :

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  9. The end of two rods of different materials with their thermal conducti...

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  10. The length of the two rods made up of the same metal and having the sa...

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  11. Three rods made of the same material and having same cross-section are...

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  12. Two rods A and B are of equal lengths. Their ends of kept between the ...

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  13. Consider a compound slab consisting of two different material having e...

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  14. In a steady state of thermal conduction, temperature of the ends A and...

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  15. Three rods of same dimensions are arranged as shown in Fig. They have ...

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  16. Figure shows a copper rod joined to a steel rod. The rods have equal l...

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  17. A wall has two layers A and B, each made of different material. Both t...

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  18. A metal rod of length 2 m has cross sectional areas 2 A and A as shown...

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  19. A slab consists of two layers of different materials of the same thick...

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  20. Two rods of same length and transfer a given amount of heat 12 second,...

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