exam3-magnetism

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

This preview shows pages 1–2. Sign up to view the full content.

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. a) Calculate the magnitude of the magnetic force on the electron. b) Is the direction of the force: (circle one) A. Parallel to the wire. B. Toward the wire. C. Away from the wire. D. None of these.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern