Question

Magnetic field in a region is equal to B. A loop of resistance R and radius r is lying in the field with its plane perpendicular to the field . If the loop is turned by 180°, find the charge which flows through a given cross-section of the loop.

Answer 1

Answer:

Magnetic field in a region is equal to B. A loop of resistance R and radius r is lying in the field with the plane perpendicular to the field if the loop is turned by 180 degree. ... The emf generated by in the loop due to magnetic field is. Now if r is the radius of the loop then area is given by A = πr