A wire of length L and three identical cells of negligible internal resistances are connected in seires. Due to the current, the temperature of the wire is raised by Delta T in a time t. N number of similar cells are now connected in series with a wire of the same material and crosssection but of length 2L. The temperature of the wire is raised by the same amount Delta Tin the same time t. The value of 'N' is

A wire of length L and three identical cells of negligible internal re

1.	A wire of length L and three identical cells of negligible internal resistances are connected in seires. Due to the current, the temperature of the wire is raised by Delta T in a time t. N number of similar cells are now connected in series with a wire of the same material and crosssection but of length 2L. The temperature of the wire is raised by the same amount Delta Tin the same time t. The value of 'N' is
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