A wire of length L and 3 identical cells is now connected in series with a wire of the same material and cross-section but of length by the same amoun

Question

A wire of length L and 3 identical cells is now connected in series with a wire of the same material and cross-section but of length by the same amoun

A wire of length L and 3 identical cells is now connected in series with a wire of the same material and cross-section but of length by the same amount `Delta T` in the same time t. the value of N is:-
A. 4
B. 6
C. 8
D. 9

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

`((3V)^(2))/(R)t=ms DeltaT`
and `((NV)^(2))/(2R)t=2ms Deltat`
`rArr(N^(2))/(4)=9`
`rArr N^(2)=36rArrN=6`

5 views Answered 2023-02-05 15:29