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AP Physics 2
12.4 Electromagnetic Induction and Faraday’s Law
IntermediateMCQGraphicalConceptual18.6k
A rectangular wire loop with vertical width \(w\) and horizontal length \(L\) is positioned to the left of a rectangular region. An arrow labeled \(\vec{v}\) points to the right from the right edge of the loop. The magnetic field region has a horizontal width \(W\) where \(W > L\). Inside the field region, evenly spaced x marks indicate a uniform magnetic field \(\vec{B}\) directed into the page. No other labels, lines, text, or axes appear.
Rectangular loop moving through a magnetic field region
A rigid rectangular wire loop of width \(w\) and length \(L\) moves to the right with a constant speed \(v\) along a straight horizontal path. The loop enters, fully passes through, and exits a region of width \(W\) (where \(W > L\)) containing a uniform magnetic field of magnitude \(B\) directed perpendicularly into the page. Which of the following graphs best represents the magnetic flux \(\Phi_B\) through the loop as a function of time \(t\) during this motion?

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