An infinitely long hollow conducting cylinder with radius R carries a uniform current along its surface. Choose the correct representation of magnetic field (B) as a function of radial distance (r) from the axis of cylinder.

Question

An infinitely long hollow conducting cylinder with radius R carries a uniform current along its surface. Choose the correct representation of magnetic field (B) as a function of radial distance (r) from the axis of cylinder. (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

1) r < R , B p =0 2) r ≥ R , B p =(μ0 1/2 π r ) Bp propto (1/r)

Q. An infinitely long hollow conducting cylinder with radius $R$ carries a uniform current along its surface. Choose the correct representation of magnetic field $(B)$ as a function of radial distance $(r)$ from the axis of cylinder.

1) $r < R, B_{p} = 0$
2) $r \geq R, B_{p} = \frac{μ _{0} 1}{2 π r}$
$B_{p} \propto \frac{1}{r}$

Q. An infinitely long hollow conducting cylinder with radius R carries a uniform current along its surface. Choose the correct representation of magnetic field (B) as a function of radial distance (r) from the axis of cylinder.

1) r<R,Bp​=0 2) r≥R,Bp​=2πrμ0​1​ Bp​∝r1​

Q. An infinitely long hollow conducting cylinder with radius $R$ carries a uniform current along its surface. Choose the correct representation of magnetic field $(B)$ as a function of radial distance $(r)$ from the axis of cylinder.

1) $r < R, B_{p} = 0$
2) $r \geq R, B_{p} = \frac{μ _{0} 1}{2 π r}$
$B_{p} \propto \frac{1}{r}$