Magnetic resonance imaging (MRI) is a medical technique for producing “pictures” of the interior of the body. The patient is placed within a strong magnetic field. One safety concern is what would happen to the charged particles in the body fluids if an equipment failure caused the magnetic field to be shut off suddenly. An induced emf could cause these particles to flow, producing an electric current within the body. Suppose the largest surface of the body through which flux passes has an area of 0.032 m² and a normal that is parallel to a magnetic field of 1.5 T. Determine the time period during which the field can be allowed to vanish if the magnitude of the average induced emf is to be kept at 0.010 V.
Magnetic resonance imaging (MRI) is a medical technique for
producing “pictures” of the interior of the body. The patient is placed
within a strong magnetic field. One safety concern is what would
happen to the charged particles in the body fluids if an equipment
failure caused the magnetic field to be shut off suddenly. An
induced emf could cause these particles to flow, producing an
body through which flux passes has an area of 0.032 m² and a normal
that is parallel to a magnetic field of 1.5 T. Determine the time period
during which the field can be allowed to vanish if the magnitude of the
average induced emf is to be kept at 0.010 V.
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