Question

derive an value of constant in Biot s savarts law ?

Answer 1

A−2). The permeability constant (µ0), also known as the magnetic constant or the permeability of free space, is a measure of the amount of resistance encountered when forming a magnetic field in a classical vacuum. The magnetic constant has the exact (defined) value (µ0 = 4π × 10−7 H. m−1 ≈ 12.57 × 10−7 H.