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if the ratio of magnetic field at two points in a difinte direction due to a long current carrying wire is ¾ then the ratio of the distances of these points from the wire will be?? give solution

if the ratio of magnetic field at two points in a difinte direction due to a long current carrying wire is ¾  then the ratio of the distances of these points from the wire will be??
give solution

Grade:12

1 Answers

Demo_Gulbarga
18 Points
2 years ago
B = mu_0  I / (2 pi r)  ;  by ampere’s circuital law
                                  ; amperean loop is circle of radius r, with centre at wire location and area of circle perpendicular to wire
 
B1 / B2 = r2 / r1 = 3 / 4
==> r1 / r2 = 4 / 3
 
 

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