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Physics 1 Problem Solutions 247

Physics 1 Problem Solutions 247 - Chapt 32 Inductance and...

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Unformatted text preview: Chapt. 32 Inductance and Inductors Multiple-Choice Problems 032 qmult 00100 1 1 3 easy memory: inductance 1. The quantity given the symbol L or M is a coefficient that appears in the formula relating Faraday law induced emf to the derivative of the current in a system. The formula itself is E = − L dI dt or E = − M dI dt . The formula is a special case of the Maxwell-Faraday equation version of Faraday’s law. So the emf is only due induced electric fields. There is no motional emf contribution—at least not in what one ordinarily means by a system with . a) resistance b) capacitance c) inductance d) emf e) reluctance 032 qmult 00110 1 1 3 easy memory: self-inductance 2. In an inductance system, when the contour for current current flow is the same as the contour for the emf, one has and when not, one has . a) mutual inductance; self-inductance b) self-inductance; joint inductance c) self-inductance; mutual inductance d) real inductance; mutual inductance e) self-righteous-inductance; mutual-fund inductance...
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