Physics

Problem

A thin conducting wire is bent into a semicircle of radius

10\,\text{cm}

and carries a steady current of

3\,\text{A}

. The semicircle lies in a plane perpendicular to a uniform magnetic field of

0.50\,\text{T}

. What is the magnitude of the net force acting on the semicircular wire? a)

0\,\text{N}

0.15\,\text{N}

0.30\,\text{N}

0.47\,\text{N}