Answer :


Given-



Current through the wire, i = 2 A
Resistance of the wire, R = 25 Ω
Time taken, t = 1 min = 60 s
We know Joule’s heating effect, heat developed across the wire,




where,


I =current


R = resistance of the resistor


t = time for which current is flowing


Putting the value in the above formula, we get



= 2 × 2 × 25 × 60= 100 × 60 J = 6000 J


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