A 22-turn circular coil of wire has a diameter of 1.6m. It is placed with its axis along the direction of the Earth's magnetic field of 52T at 63° below the horizontal, and then in 0.23s it is flipped 180°.
1. What is volts the magnitude of the average induced emf in the coil?
2. We would like 100 x the voltage found in part a to be generated among the wingtips of an airplane of 60.5 m wingspan flying horizontally in the same region. What would be in m/s the required speed of the airplane?