The magnetic field at the earth's surface can vary in response to solar activity. During one intense
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The magnetic field at the earth's surface can vary in response to solar activity. During one intense solar storm, the vertical component of the magnetic field changed by \(2.8 \mu \mathrm{T}\) per minute, causing voltage spikes in large loops of the power grid that knocked out power in parts of Canada. What emf is induced in a square \(100 \mathrm{~km}\) on a side by this rate of change of field?
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Related Book For 
College Physics A Strategic Approach
ISBN: 9780321907240
3rd Edition
Authors: Randall D. Knight, Brian Jones, Stuart Field
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