cm. The magnetic field is unifor
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. A uniform magnetic field is directed normal to the plane of a wire that has been formed into 6
a circular ring of radius, r = 3.1 cm. The magnetic field is uniform in space, but changes
with time. The resistance of this ring is R = 2.0 Ω. A steady current of i = 2.5 mA flows
through the wire. How fast is the magnetic field changing?
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