Isha Lohan posted an Question
May 01, 2020 • 23:46 pm 30 points
  • IIT JAM
  • Physics (PH)

A toroidal coil has a rectangular cross section, with inner radius a, outer radius a + , and height h. it carries a total of n tightly wound turns, and the cur

A toroidal coil has a rectangular cross section, with inner radius a, outer radius a + , and height h. It carries a total of N tightly wound turns, and the current is increasing at a constant rate (d1/dt = k). If w andh are both much less than a, find the electric field at a point z above the center of the toroid. [Hint: exploit the analogy between Faraday fields and magnetostatic fields?

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    Abhishek singh best-answer

    Solution attached.

    cropped5842695584695153073.jpg
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    as per this solution, electric field is same as magnetic field of circular current, how?

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    please tell, why do we consider here E same as B?

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