A closely wound rectangular coil of 80 turns has dimensions of 25 cm by 40 cm. The plane of the coil is rotated from a position where it makes an angle of 37 degrees with a magnetic field of 1.10 T to a position perpendicular to the field. The rotation takes .06 s. What is the average emf induced in the coil?

Answer 1

Divide the magnetic flux change between the two positions by the rotation time interval. Multiply the answer by 80 (the number of turns).
The answer will be in volts.

"Magnetic flux" is the product of the B field and the coil area perpendicular to the field.

The coil area should be in square meters

Answer 2

A closely wound rectangular coil of 80 turns has dimensions of 25 cm by 40 cm. The plane of the coil is rotated from a position where it makes an angle of 37 degrees with a magnetic field of 1.10 T to a position perpendicular to the field. The rotation takes .06 s. What is the average emf induced in the coil?

Answer 3

78