Magnetic field`B_(1)` due to abar magnet at a point P on axial line is equal to magnetic field `B_(2)` due to the same magnet at point Q on equatorial line.What ios the ratio distances of point P and Q from centre?A. `2^(-1//3)`B. 2C. `2^(1//3)`D. `1//2`

Magnetic field`B_(1)` due to abar magnet at a point P on axial line is

1.	Magnetic field`B_(1)` due to abar magnet at a point P on axial line is equal to magnetic field `B_(2)` due to the same magnet at point Q on equatorial line.What ios the ratio distances of point P and Q from centre?A. `2^(-1//3)`B. 2C. `2^(1//3)`D. `1//2`
Answer» Correct Answer - C `B_("axis")=B_(eq)` `(mu_(0))/(rpi)(2M)/(r_(a)^(3))=(mu_(0))/(4pi)(M)/(r_(e)^(3))` `therefore (r_(a))/(r_(e))=3sqrt((2)/(1))=(1.26)/(1)`

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Magnetic field`B_(1)` due to abar magnet at a point P on axial line is equal to magnetic field `B_(2)` due to the same magnet at point Q on equatorial line.What ios the ratio distances of point P and Q from centre?A. `2^(-1//3)`B. 2C. `2^(1//3)`D. `1//2`

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