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Induced EMF Comes From the Gradient, Not the Area, of a Flux-Time Graph

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Induced EMF Comes From the Gradient, Not the Area, of a Flux-Time Graph

Incorrect Thinking

Students may use the area under a flux-time graph to infer induced emf.

Why Students Think This

Other topics train them to look for area meaning, so they transfer that habit without checking the quantity on the axes.

Correction

Induced emf depends on the rate of change of flux linkage, so it is tied to the gradient of the graph.

Graph View