The fux density in the air gap between the north and south poles of a horseshoe magnet is 2 T. If each of the pole surfaces has an area of 2 cm2 , what is the fux passing between the poles? What is...

The fux density in the air gap between the north and south poles of a horseshoe magnet is 2 T. If each of the pole surfaces has an area of 2 cm2 , what is the fux passing between the poles?

What is the average EMF induced in a coil of 120 turns if the fux linked changes from 0.05 Wb to 0.10 Wb in a time of 4 s?