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All the rods have same conductance 'K' a...

All the rods have same conductance `'K'` and same area of cross section '`A'`. If ends A and C are maintained at temperature `2T_(0)` and `T_(0)` respectively then which of the following is`//`are correct?

A

Rate of heat flow through `ABC, AOC and ADC` is same

B

Rate of heat flow through `BO and OD` is not same

C

Total rate of heat flow from `A` to `C` is `(3 K AT_(0))/(2a)`

D

Temperature at junctions `B, O and D` are same

Text Solution

Verified by Experts

The correct Answer is:
D
By symmetry
`I_(AB) = I_(AB)` and `I_(AD) = I_(DC)`
`:.` No current in `BO` and `OD`
`:. T_(B) = T_(O)=T_(D)`.
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