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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A wire of length L and 3 identical cells of negligible internal resistance are connected in series. Due to the current, the temperature of the wire is raised by ΔT 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 2L. The temperature of the wire is raised by the same amount ΔT in the same time t. the value of N is

A wire of length L and 3 identical cells of negligible internal resistance are connected in series. Due to the current, the temperature of the wire is raised by ΔT 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 2L. The temperature of the wire is raised by the same amount ΔT in the same time t. the value of N is

A wire of length L and 3 identical cells of negligible internal resistance are connected in series. Due to the current and second as in circuit (ii) . Then ( power in R in circuit (i))/( Power in R in circuit (ii)) = are connected in series with a 4.0ωresis→rR each having an emf1.5V and a constant internal resistance 2.0ω first as in circuit (i) Three identical cells