exam3-magnetism

exam3-magnetism - Problems: (1 pt. each. You can choose 4...

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Exam #3 (Magnetism) Physics 1220 – Spring 1220 05/05/2010 Prof. Adrian Feiguin (your name -PRINT) Problems: (1 pt. each. You can choose 4 out of 5, or lowest score will be dropped if you complete all of them). USE SI UNITS TO EXPRESS YOUR RESULTS 1) Two protons (charge 1.6x10 -19 C) are at positions A and B, at a distance of d=10 -6 m, as depicted in the figure below. Their velocities are 800 m/s. Calculate: a) The magnitude of the magnetic field created by proton A at position B. b) The direction of the magnetic field at point B is (circle one) A. Into the page B. Out of the page C. None of these. c) Calculate the magnitude of the magnetic force on proton B. d) The direction of the force is (circle one) A. Toward proton A B. Away from proton A 2) A straight wire carries a current of I=50A. An electron (charge -1.6x10 -19 C) is at a distance of 5m from the wire, moving with a velocity of 10 6 m/s parallel to the wire, in the same direction as the current.
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This note was uploaded on 12/08/2010 for the course PHYSC 1220 taught by Professor Feiguin during the Fall '10 term at Wyoming.

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exam3-magnetism - Problems: (1 pt. each. You can choose 4...

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