Physics

Problem

A coil of 50 turns and area

0.020\,\text{m}^2

starts from rest in a uniform

0.10\,\text{T}

magnetic field and is set into rotation with a constant angular acceleration of

40\,\text{rad s}^{-2}

. The plane of the coil is perpendicular to the field at

t=0

. What is the magnitude of the induced emf after

0.10\,\text{s}

? a)

0.16\,\text{V}

0.40\,\text{V}

0.08\,\text{V}

0.04\,\text{V}