A Large Jetliner with a Wingspan of 37 M Flies

Multiple Choice

A large jetliner with a wingspan of 37 m flies horizontally and due north at a speed of 190 m/s in a region where the magnetic field of the earth is 56 µT directed 55° below the horizontal.What is the magnitude of the induced emf between the ends of the wing?

A) 230 mV
B) 390 mV
C) 320 mV
D) 22 mV
E) ​9 mV