Question

A long wire carries a current of 5 mA. Find the line integral of B vector around the path (or radius 10 cm) enclosing the wire. (μ/4pi = 10^-7 S.I. units)​

Answer 1

Answer:

$2\pi *10^{-9}$

Explanation:

By using the ampere's law, the line integral of the magnetic field around a region is mu*current enclosed.