To monitor the breathing of a hospital patient, a thin belt is girded around the

Question

To monitor the breathing of a hospital patient, a thin belt is girded around the patient's chest. The belt is a 300-turn coil. When the patient inhales, the area encircled by the coil increases by 50.0 cm2. The magnitude of Earth's magnetic field is 50.0 ?T and makes an angle of 30.0 with the plane of the coil. Assuming a patient takes 2.0 s to inhale, find A) the initial magnetic flux through the coil B) the final magnetic flux through the coil (at 2.0 s) C) the magnitude of the average induced emf in the coil during that time.

Explanation / Answer

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To monitor the breathing of a hospital patient, a thin belt is girded around the patient's chest as in the figure below. The belt is a 195 turn coil. When the patient inhales, the area encircled by the coil increases by 42.0 cm2. The magnitude of earth's magnetic field is 50.0

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