Rotating Loop Induced EMF Radius (Jee Mains)

Electromagnetic Induction

Medium

Rotating Loop Induced EMF Radius

A conducting circular loop is rotated about its diameter at a constant angular speed of 100 rad/s in a magnetic field of 0.5 T perpendicular to the axis of rotation. When the loop is rotated by 30° from the horizontal position, the induced EMF is 15.4 mV. The radius of the loop is ______ mm. $\left( {Take\,\,\pi = \frac{{22}}{7}} \right)$