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Considering a wire of non-uniform cross-...

Considering a wire of non-uniform cross-section as shown.If the area of cross-section at A is double of the area of cross-section at point B.Ratio of heat energy dissipated in a unit volume per unit time at points A and B is

A

`1/4`

B

`4/1`

C

`1/2`

D

`2/1`

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