The Plane of a Wire Loop with an Area of 0.20

Multiple Choice

The plane of a wire loop with an area of 0.20 m² is perpendicular to a magnetic field of 50 mT.In 40 ms you rotate the loop 90º so that its plane is parallel to the magnetic field.The average EMF induced in the loop is

A) 0.25 V
B) 6.0 V
C) 3.0 V
D) 4.0 V
E) 1.3 V