Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Model a torch battery of length 
to be made up of a thin cylindrical bar of radius ' 
' and a concentric thin cylindrical shell of radius ' 
' filled in between with an electrolyte of resistivity 
(see figure). If the battery is connected to a resistance of value 
, the maximum joule heating in 
will take place for:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
For Max heat transfer
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