A metal ring carries a current that causes a magnetic field B0 at the center of the ring and a field B at point P a distance x from the center along the axis of the ring. If the radius of the ring is doubled, find the magnetic field at the center. Will the field at point P change by the same factor? Why?
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A metal ring carries a current that causes a magnetic field B0
at the center of the ring and a field B at point P a distance x from the
center along the axis of the ring. If the radius of the ring is doubled, find
the magnetic field at the center. Will the field at point P change by the
same factor? Why?
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