All questions
AP Physics C: E&M
13.3 Induced Currents and Magnetic Forces
13.2 Electromagnetic Induction
13.1 Magnetic Flux
AdvancedMCQConceptual20.5k
A single closed circular loop drawn with a solid line sits in the plane of the page. Near the top edge of the circular loop is the text label R. Across the interior of the loop are exactly six uniformly spaced symbols indicating a magnetic field directed perpendicular into the page, arranged in two horizontal rows of three. Above the loop is an arrow pointing into the page accompanied by the text label \vec{B}. No other labels, lines, text, or axes appear.
A circular conducting loop of resistance \(R\) in a perpendicular magnetic field \(\vec{B}\).
A stationary circular wire loop with fixed electrical resistance \(R\) is placed in a uniform magnetic field directed perpendicular to the plane of the loop. The magnitude of the magnetic field changes monotonically from an initial value \(B_i\) to a final value \(B_f\) over an elapsed time interval \(\Delta t\). An experimenter observes that when the transition occurs over a very short time interval, the peak induced current is substantially greater than when the transition occurs over a long time interval, yet the total electric charge passing through a cross section of the wire is identical in both trials. Which of the following statements provides the physically correct explanation for why the total charge transferred is independent of \(\Delta t\)?

Log In to Continue

Accounts are free! Log in to try this question, see explanations, save progress, and more!

Tools for a 5