Magnetism Basics 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!

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Question 1 1. A loop of wire with an area of 0.5 square meters is in a 1.0 T magnetic field. Over a time of 0.5 s, the magnetic field is reduced to zero. What is the emf induced between the ends of the wire?

Question 2 2. A loop of wire of with an area of 0.01 square meters is held in a 0.25 T magnet field for 10 seconds. What is the induced emf between the ends of the wire during this time?

Question 3 3. In which of the following situations will an emf be induced between the ends of the wire?

Question 4 4. What is the Biot-Savart Law?

Question 5 5. When can the simplified version of the Biot-Savart Law be used?

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Question 6 6. What shape is the magnetic field created by a current carrying wire?

Question 7 7. What has to occur to a wire loop for a voltage to be induced?

Question 8 8. If the magnetic field in the diagram is increasing upward. Which way will the induced current in the loop flow?

Question 9 9. A single square loop of wire with sides of 0.5 meter is in a magnetic field of 1 tesla (T). The square loop is reduced to sides of 0.25 m in 0.3 seconds. The wire has a natural resistance of 1 Ω. What is the magnitude of the induced current?

Question 10 10. What two forces make up the Lorentz equation?

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Question 11 11. What direction is the force on the proton moving through the magnetic field?

Question 12 12. Which way does the magnetic field point at point P?

Question 13 13. Which direction does the magnetic field point at location 2?

Question 14 14. Which way is the current facing in the diagram?

Question 15 15.

A 1 amp current is moving through a wire. What is the magnitude of the magnetic field 1 nm (1 x 10-9 m) from the wire?

μo = 4π x 10-7 T⋅m⋅s/C.

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Question 16 16. What is the basic principle of the right hand rules?

Question 17 17. What is the relationship between magnetic force, magnetic fields, and currents?

Question 18 18. In the first right hand rule, what basic gesture are you making?

Question 19 19. Increasing the current through a wire:

Question 20 20. To create a magnetic field, a charged particle must be:

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Question 21 21. All magnetic fields are created by:

Question 22 22. The _______ going into a transformer is equal to the _______ going out of the transformer.

Question 23 23. In order for a transformer to work:

Question 24 24. Mutual inductance can be used to do the following, except:

Question 25 25. The north pole of a magnet is pushed downward into the center of a loop of wire. What will happen?

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Question 26 26. How do you figure out the DIRECTION of the magnetic field created by a current-carrying wire?

Question 27 27. A single square loop of wire with sides of 0.5 meter is in a magnetic field of 1 tesla (T). The square loop is reduced to sides of 0.25 m in 0.3 seconds. The wire has a natural resistance of 1 Ω What is the magnitude of the induced voltage?

Question 28 28. 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 29 29. Which direction is the magnetic field pointing at location 2?

Question 30 30. In the second right hand rule, if your thumb is pointing up, then what do the directions of your curved fingers indicate?

Magnetism Basics 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!

Physics 112: Physics II  /  Science Courses
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