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Problem 63 Easy Difficulty

The magnetic field shown in Figure P20.63 has a uniform magnitude of 25.0 mT directed into the paper. The initial diameter of the kink is 2.00 cm. (a) The wire is quickly pulled taut, and the kink shrinks to a diameter of zero in 50.0 ms. Determine the average voltage induced between endpoints A and B. Include the polarity. (b) Suppose the kink is undisturbed, but the magnetic field increases to 100 $\mathrm{mT}$ in $4.00 \times$ $10^{-3}$ s. Determine the average voltage across terminals $A$ and $B,$ including polarity, during this period.

Answer

a. 0.157 \mathrm{mV}
b. 5 \cdot 89 \mathrm{mV}

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Video Transcript

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H.B.T.I.
Top Physics 102 Electricity and Magnetism Educators
Christina K.

Rutgers, The State University of New Jersey

Farnaz M.

Other Schools

Zachary M.

Hope College

Meghan M.

McMaster University

Physics 102 Electricity and Magnetism Bootcamp

Lectures

Join Bootcamp