Two wires A and B of same material and mass have their lengths in the ratio 1 : 2. On connecting them to the same source, the rate of heat dissipation in B is found to be 5W. The rate of heat dissipation in A is
Text Solution
Verified by ExpertsThe correct answer is:
C
also 
⇒ ⇒ 
⇒ ⇒ 
(for same mass)
So 
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