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pls solve this ques

pls solve this ques

Question Image
Grade:12

1 Answers

Apoorva Arora IIT Roorkee
askIITians Faculty 181 Points
7 years ago
Let us take a small length element dx the charge on it is dq
so the potential due to this small element is given by
where
a= distance between z=d and z=z (some arbitrary value)
x the distance between the length element dx and z=d
hence
therefore potential at z=4d
and at z= 3d
and hence the differenceis the potential difference
Thanks and Regards
Apoorva Arora
IIT Roorkee
askIITians Faculty

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