Question: Q. 2. (i) Express Biot-Savart law in the vector form.
(ii) Use it to obtain the expression for the magnetic field at an axial point, distance $d$ from the centre of a circular coil of radius $R$ carrying current $I$.
(iii) Also, find the ratio of the magnitudes of the magnetic field of this coil at the centre and at an axial point for which $x=R \sqrt{3}$.
R&A [O.D. I 2016]
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Solution:
Ans.
Detailed Answer :
(i) Try yourself, Similar to Q. 3(a) of Short Answer Type Questions-II.
(ii) Try yourself, Similar to Q. 3(b) of Short Answer Type Questions-II.
