5. A horizontal wire is frce to slide on the vertical rails of a conducting frame, as in the figure. The wire has mass m and length I, and the resistance of the circuit is R. a) (12 pts.) If a uniform magnetic field is directed perpendicularly to the frame, out of the paper, what is the terminal (final) speed of the wire as it falls under the force of gravity? (Neglect friction.) b) (8 pts.) Is the current in the wire from A to B or B to A? Explain your answer.

5. A horizontal wire is frce to slide on the vertical rails of a conducting frame, as in the figure. The wire has mass m and length I, and the resistance of the circuit is R. a) (12 pts.) If a uniform magnetic field is directed perpendicularly to the frame, out of the paper, what is the terminal (final) speed of the wire as it falls under the force of gravity? (Neglect friction.) b) (8 pts.) Is the current in the wire from A to B or B to A? Explain your answer.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter22: Magnetism

Section: Chapter Questions

Problem 4CQ: Noting that the magnetic field lines of a bar magnet resemble the electric field lines of a pair of...

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