A 800 turn coil of effective area is kept perpendicular to a magnetic field . When the plane of the coil is rotated by 90 around any of its coplanar axis in 0.1 s , the emf induced in the coil will be :
2 V
0.2 V
0.0002 V
0.02 V
N = 800
case 1 B and A are parallel
So
case 2 B and A are perpendicular
So
Option 1)
2 V
Option 2)
0.2 V
Option 3)
0.0002 V
Option 4)
0.02 V