Magnetic field due to a ring having n turns at a distance `x` on its axis is proportional to (if `r =` radius of ring)A. `(r)/((x^(2)+r^(2)))`B. `(r)/((x^(2)+r^(2))^(3//2))`C. `(nr^(2))/((x^(2)+r^(2))^(3//2))`D. `(n^(2)r^(2))/((x^(2)+r^(2))^(3//2))`

Magnetic field due to a ring having n turns at a distance `x` on its a

1.	Magnetic field due to a ring having n turns at a distance `x` on its axis is proportional to (if `r =` radius of ring)A. `(r)/((x^(2)+r^(2)))`B. `(r)/((x^(2)+r^(2))^(3//2))`C. `(nr^(2))/((x^(2)+r^(2))^(3//2))`D. `(n^(2)r^(2))/((x^(2)+r^(2))^(3//2))`
Answer» Correct Answer - C

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Magnetic field due to a ring having n turns at a distance `x` on its axis is proportional to (if `r =` radius of ring)A. `(r)/((x^(2)+r^(2)))`B. `(r)/((x^(2)+r^(2))^(3//2))`C. `(nr^(2))/((x^(2)+r^(2))^(3//2))`D. `(n^(2)r^(2))/((x^(2)+r^(2))^(3//2))`

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