Question

Class 10, Ch13 Magnetic Effects of Electric Current:

Is Magnetic Field Line ∝ Inverse of Radius of a Circular Current-Carrying Conductor (B∝r)

(OR)

Is Magnetic Field Line ∝ Inverse of Square of the Radius of Current-Carrying Conductor (B∝$\frac{1}{r^{2} }$)

Answer 1

Explanation:

I am in 9th standard sorry