Physics

Problem

A coil of

50

turns and area

0.010\,\text{m}^2

has a resistance of

4\,\Omega

. It is kept perpendicular to a magnetic field that changes with time according to

B = 3t^2 + 2

(SI units). Calculate the total heat produced in the coil during the time interval from

t=0

t=2\,\text{s}

. a)

24\,\text{J}

4.5\,\text{J}

6\,\text{J}

18\,\text{J}