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Physics · Unit 3 · Electromagnetism · Electrostatics

Describe the concepts of magnetic flux, magnetic flux density, electromagnetic induction, electromotive force (EMF), Faraday’s Law and Lenz’s Law.

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Question 1

A physics student conducts an experiment by moving a bar magnet through a stationary coil connected to a sensitive galvanometer. In Trial 1, the magnet moves slowly through the coil, and a small deflection is observed. In Trial 2, the magnet moves quickly through the coil, and a larger deflection is observed. In Trial 3, the magnet is held stationary inside the coil, and no deflection is observed. Describe how Faraday's Law and Lenz's Law explain the observations across the three trials.

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Question 2

Describe the relationship between magnetic flux and electromotive force (EMF) as stated in Faraday's Law.

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