Physics

Problem

A circular coil of 50 turns and radius

10\,\text{cm}

carries a current of

3\,\text{A}

. Take

\mu_0 = 4\pi\times10^{-7}\,\text{T m A}^{-1}

. Calculate the magnetic field at the centre of the coil. a)

600\,\mu\text{T}

1885\,\mu\text{T}

942\,\mu\text{T}

300\,\mu\text{T}