A wire of length \(L\) and 3 identical cells of negligible internal resistances are connected in....

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A wire of length \(L\) and 3 identical cells of negligible internal resistances are connected in series. Due to current, the temperature of the wire is raised by \(\Delta T\) in a time \(t\). A number \(N\) of similar cells is now connected in series with a wire of the same material and cross-section but of length \(2 L\). The temperature of the wire is raised by the same amount \(\Delta T\) in the same time \(t\). Find the value of \(N\). 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live



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