The magnetic field due to a straight conductor of uniform cross section of radius a and carrying a steady current is represented by

Question

The magnetic field due to a straight conductor of uniform cross section of radius a and carrying a steady current is represented by (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

B text inside =(μ0 Ir /2 π a 2) B text outside =(μ0 I /2 π r )

Q. The magnetic field due to a straight conductor of uniform cross section of radius a and carrying a steady current is represented by

$B_{inside} = \frac{μ _{0} I r}{2 π a ^{2}}$
$B_{outside} = \frac{μ _{0} I}{2 π r}$

Q. The magnetic field due to a straight conductor of uniform cross section of radius a and carrying a steady current is represented by

Binside ​=2πa2μ0​Ir​ Boutside ​=2πrμ0​I​

$B_{inside} = \frac{μ _{0} I r}{2 π a ^{2}}$
$B_{outside} = \frac{μ _{0} I}{2 π r}$