In a physics laboratory experiment, a coil with 200 turnsenclosing an area of 12cm2 is rotated in 0.040s from aposition where its plane is perpendicular to the earth's magneticfield to one where its plane is parallel to the field. The earth'smagnetic field at lab location is 6.0 x 10-5T.
a) What is the total magnetic flux through the coil before itis rotated? After it is rotated?
b) What is the average emf induced in the coil?