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Overview of Magnetism Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. What happens when we put ferromagnetic materials in a magnetic field?

Question 2 2. The direction of the force experienced by a charged particle moving relative to a magnetic field is affected by all of these, EXCEPT:

Question 3 3. When a charged particle moves left to right relative to a magnetic field, it will experience a force. This force is always in a direction that is _____ to both the magnetic field and the particle's direction of travel.

Question 4 4. If a positive charge is moving relative to a magnetic field, it will experience a force, unless it is traveling _____ to the field.

Question 5 5. When the secondary coil has twice the number of turns as the primary coil, the voltage will be _____ and the current will be _____ of that in the primary coil.

Page 2

Question 6 6. Cordless charging of devices uses _____.

Question 7 7. A 0.55 C charge moves at 5 m/s in an electric field of 4 N/C. There is a magnetic field of 0.0013 T at a 30-degree angle. What is the magnitude of the Lorentz force felt by the charge?

Question 8 8. A speaker uses a(n) _____ to function.

Question 9 9. All of the following are true about magnetic fields, EXCEPT:

Question 10 10. The _____ are used to determine the direction of magnetic force, current, or magnetic field.

Page 3

Question 11 11. How strong is the magnetic field 48 cm away from a wire carrying 4 amps of current? (permeability of free space = 1.26 × 10-6 Tm/A)

Question 12 12. What is the magnitude of the magnetic field if the charge is 1.6 x 10-19 C, its velocity is 8.5 x 107 m/s, and it is 0.001 m from point P? θ is 30o.

Question 13 13. What two forces make up the Lorentz equation?

Question 14 14. To create a magnetic field, a charged particle must be:

Question 15 15. A ferromagnetic core:

Page 4

Question 16 16. The direction of a magnetic field is:

Question 17 17. A material is ferromagnetic if:

Question 18 18. What is the magnetic field strength and direction at a point P, 0.2 meters away from a wire carrying a current of 2 amps? (See the diagram below to help figure out the direction.)

Question 19 19. What is the Biot-Savart Law?

Question 20 20. A magnetic field cannot exert a force on a charged particle unless:

Page 5

Question 21 21. A charged particle will experience the maximum force:

Question 22 22. Mutual inductance can be used to do the following, except:

Question 23 23. The _______ going into a transformer is equal to the _______ going out of the transformer.

Question 24 24. An electron moves through a wire in the magnetic field as shown. What is the direction of the force on the electron?

Question 25 25. What is the unit associated with magnetic field strength?

Page 6

Question 26 26. In the first right hand rule, if the thumb is pointing in the direction of the current and the fingers are pointing in the direction of the magnetic field, which direction is the magnetic force?

Question 27 27. In the first right hand rule, what basic gesture are you making?

Question 28 28. Which way does the magnetic field point at point P?

Question 29 29. All magnetic fields are created by:

Question 30 30. Magnetic domains are:

Overview of Magnetism Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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