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AP Physics Topic 18-C Examples

About this Lesson

  • Type: Video Tutorial
  • Length: 15:50
  • Media: Video/mp4
  • Use: Watch Online & Download
  • Access Period: Unrestricted
  • Download: MP4
  • Size: 57 MB
  • Posted: 09/12/2010

This lesson is part of the following series:

AP Physics Homework Examples – Full Course (50 lessons, $29.70)
Electricity & Magnetism – AP Physics Homework (16 lessons, $14.85)

Advanced Placement (AP) Physics teachers explain how to complete homework problems in "Magnetic Forces and Fields." Each of the 3 tutorials explains a different problem or problems in detail, complete with equations, diagrams, and hints for successful Physics problem solving. Specific topics included in this lesson are: magnetic fields, magnetic force on a current-carrying wire, the right hand rule for determining the direction of the magnetic force, and magnetic force used to exert torque in a motor.
Applicable to AP Physics or Non-Calculus College Physics (and some lower level physics.)

Tutorials included in this lesson:
18-8: Magnetic Force on a Current-Carrying Wire
18-9: Magnetic Force on a Wire (II)
18-10: Magnetic Force and Torque

The tutorials in this lesson are also part of the following series:

- "AP Physics Electricity & Magnetism Homework Examples" which includes 16 lessons (74 tutorials) in electric forces and fields, electric potential difference and potential energy, capacitance, electric current and power, resistance and electrical circuits, magnetic forces and fields, and induced voltage and current.

- "AP Physics Homework Examples – Full Course" which includes 50 lessons (230 tutorials) in all topics of Physics: Mechanics, Fluids, and Thermal Physics, Electricity and Magnetism, Waves and Optics, and Modern Physics.

Supplementary Files

  • Once you purchase this lesson you will have access to these files:
  • Problem_Slides_-_Topic_18-C.pdf Problem_Slides_-_Topic_18-C.pdf
  • Solution_Slides_-_Topic_18-C.pdf Solution_Slides_-_Topic_18-C.pdf

About this Author

Sioux Falls Physics Teachers
Sioux Falls Physics Teachers
50 lessons

Barb Newitt, Brad Newitt, and Jeff Berndt are the AP Physics Teachers in Sioux Falls, South Dakota. They have led their own students to great success in their classrooms, and now they're ready to be your "online tutors" for AP or College Physics! Their homework example videos make the often difficult subject of Physics easier to understand and are a valuable resource to any Physics student. Most videos are designed for AP Physics or College Physics courses, but some will apply to lower levels of Physics as well.


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Magnetic Forces & Fields
(Part C):

18-8: Magnetic Force on a Current-Carrying Wire (at 0:10)
A straight wire of length 5.0 m carries a current of 10 A through a magnetic field of 3.0 T as shown in the 2 situations below. Determine the magnitude and direction of the magnetic force exerted on the wire in each case.

18-9: Magnetic Force on a Wire (II) (at 4:21)
A straight wire of linear density 7.0 g/m carries a current of 1.5 A through a magnetic field in the region shown below. Determine the direction and magnitude of the magnetic field required to hold the wire in equilibrium.

18-10: Magnetic Force and Torque (at 10:46)
A single wire loop of dimensions .03 m by .04 m carries a current of 2.0 A through a magnetic field of .25 T as shown. Determine the total torque exerted on the single loop.

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