A Copper Hoop Is Held in a Vertical East-West Plane

Multiple Choice

A copper hoop is held in a vertical east-west plane in a uniform magnetic field whose field lines run along the north-south direction.The largest induced emf is produced when the hoop is:

A) rotated about a north-south axis
B) rotated about an east-west axis
C) moved rapidly, without rotation, toward the east
D) moved rapidly, without rotation, toward the south
E) moved rapidly, without rotation, toward the northwest