An infinitely long hollow conducting cylinder with inner radius `(r )/(2)` and outer radius `R` carries a uniform current ra density along its length . The magnitude of the magnetic field , ` | vec(B)|` as a function of the radial distance `r` from the axis is best represented byA. B. C. D.

An infinitely long hollow conducting cylinder with inner radius `(r )/

1.	An infinitely long hollow conducting cylinder with inner radius `(r )/(2)` and outer radius `R` carries a uniform current ra density along its length . The magnitude of the magnetic field , ` \| vec(B)\|` as a function of the radial distance `r` from the axis is best represented byA. B. C. D.
Answer» Correct Answer - `D` `B xx 2 pix = mu_(0)J(pi(x^(2)-(R^(2))/(4)))` `B =(mu_(0)J)/(2pi) (x-(R^(2))/(4x))`

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An infinitely long hollow conducting cylinder with inner radius `(r )/(2)` and outer radius `R` carries a uniform current ra density along its length . The magnitude of the magnetic field , ` | vec(B)|` as a function of the radial distance `r` from the axis is best represented byA. B. C. D.

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