Physics

Problem

A coil of

200

turns and area

0.020\,\text{m}^2

rotates with angular speed

50\,\text{rad s}^{-1}

in a uniform magnetic field of

0.10\,\text{T}

. Calculate the instantaneous emf induced in the coil at

t=2.0\,\text{ms}

after

t=0

is chosen when the flux through the coil is maximum. a)

10\,\text{V}

2.0\,\text{V}

0\,\text{V}

20\,\text{V}