Question

A cylindrical conductor of radius $R$ is carrying a constant current $i$. The plot of the magnitude of the magnetic field $B$ with distance $d$ from the centre of the conductor is correctly represented by the figure

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

$B=\left(\frac{{\mu }_{0}id}{2\pi R^2}:d\le R\frac{{\mu }_{0}i}{2\pi d}:d>R\right\}$