At the centre of a fixed large circular coil of radius R, a much smaller circular coil of radius r is placed. The two coils are concentric and are in the same plane. The larger coil carries a current I. The smaller coil is set to rotate with a constant angular velocity ω about an axis along their common diameter. Calculate the emf induced in the smaller coil after a time t of its start of rotation.
As we learnt
Magnetic field due to cCrcular Current Carrying arc -
- wherein
Magnetic field due to cCrcular Current Carrying arc -
- wherein
At time the samller coil is rotated by
Angle between
Option 1)
Option 2)
Option 3)
Option 4)
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