Question: A closely wound rectangular coil of 60 turns has dimensions of 30cm by 50cm. The plane of the coil is rotated from a position where it makes an angle 40.0 degree with a magnetic field of 1.40T to a position perpendicular to the field. The rotation takes 0.07s.
Question 1: What is the average emf induced in the coil?
Please show step by step process to the answer, explanation, as well as formulas.