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AP Physics 2
12.4 Electromagnetic Induction and Faraday’s Law
IntermediateMCQConceptual16.4k
Two concentric circular wire loops lie in the plane of the page. The outer loop is a large circle drawn with a solid line. Along the top edge of the outer loop, a curved arrow points counterclockwise and is labeled I. The inner loop is a smaller circle drawn with a solid line, located entirely within the region bounded by the outer loop and sharing the same central origin. A single small dot marks the common center of both loops. The region between the loops and inside the inner loop is clear. No other text, arrows, axes, or symbols appear.
Concentric wire loops with time-dependent current I.
Two coplanar, concentric circular wire loops lie flat on a table, as shown in the diagram. The outer loop carries a counterclockwise current \(I\) that decreases in magnitude over time. Which option correctly identifies the direction of the induced current in the inner loop and the direction of the induced magnetic field it creates at the center of the loops?

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