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Electricity chapter questions i cant understand sir pleas tell me this question answer

Electricity chapter questions i cant understand sir pleas tell me this question answer 

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Grade:10

1 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
2 years ago
Dear student

Please find the link below

https://www.askiitians.com/iit-jee-electric-current/resistivity-of-various-materials/

R = rho l/A

R` = rho l`/A`

consider volume to be constant ie length * area = volume = const k

Regards

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