Q7: To monitor the breathing of a hospital patient, a thin belt is girded around the patient’s chest. The belt is a turn coil. When the patient inhales, the area encir- cled by the coil increases by cm2. The magnitude of the Earth’s magnetic field is mT and makes an angle of with the plane of the coil. Assuming a patient takes s to inhale, find the average induced emf in the coil during this time interval.
pi =
g =