Tossup

David Griffiths claims that there are really two laws of this process and that only relativity explains the equivalence between a central quantity and its “motional” form. In a common demonstration of this process, a magnet dropped through a copper tube falls unexpectedly slowly. (-5[2])This process is governed by the equation “del cross E equals minus dB/dt,” which implies that the negative time derivative of magnetic flux equals the (-5[1])emf (10[1]-5[1])(“E-M-F”). This process creates eddy currents that rapidly (10[1])heat metal in a namesake type of cooktop. (10[2])Lenz’s Law (10[1])explains the negative sign in Faraday’s law of this process. For 10 points, (0[1])name this process in which a changing magnetic field creates an electric field. (10[1])■END■ (10[2])

ANSWER: electromagnetic induction [accept Faraday’s law of induction; prompt on eddy currents before “eddy” is read by asking, “what process causes them?”]
<Editors, Physics>
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