Thanveer posted an Question
May 01, 2020 • 22:08 pm 30 points
  • IIT JAM
  • Physics (PH)

Find the electric field at z distance about the centre of a circular disc of surface charge density sigma and radius r. any easy method

find the electric field at Z distance about the centre of a circular disc of surface density Sigma and radius r. Any easy method

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  • comment-profile-img>
    Ruby negi best-answer

    this is the easiest and basic method,other than there is a vector method.. in this case, only u have to take ring and then integrate it from 0 to R. this will help u... best regards

    cropped662672802.jpg
  • comment-profile-img>
    Abhishek singh

    As I directly used the formula for a ring, here I have attached the derivation for Electric field due to Ring as follows. Best regards.

    cropped1457340056922835386.jpg
  • comment-profile-img>
    Abhishek singh Best Answer

    Solution is attached. Here I have used the formula for electric field due to ring. And I have integrated over the ring. Best regards.

    cropped461280070872410281.jpg
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