Setup
| Include problems for which: | |
| the velocity and magnetic field are not perpendicular. | |
| the given information is not physically possible. | |
| Randomly present problems of the following types: | |
| Given the sign of the charge, velocity and magnetic field, determine the magnetic force. | |
| Given the sign of the charge, magnetic field and magnetic force, determine the velocity. | |
| Given the sign of the charge, velocity and magnetic force, determine the magnetic field. | |
| Given the velocity, magnetic field and magnetic force, determine the sign of the charge. | |
| Given the sign of the charge and electric field, determine the electric force. | |
| Given the sign of the charge and electric force, determine the electric field. | |
| Given the electric field and electric force, determine the sign of the charge. | |
| When you click the 'Reveal Answer' button in the main simulation, you will see a video of a hand demonstrating the right hand rule. Multiple versions of the right hand rule exist. Select the version below that you prefer. | ||||
| Description | Video Example | MCC Instructors | Textbook | |
|---|---|---|---|---|
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Start with straight fingers and thumb held at a right angle to fingers. Orient hand so fingers bend in the plane of the velocity and the magnetic field. Velocity: Direction of fingers when they are held straight.Magnetic Field: Direction of fingers after they are bent. Magnetic Force: Direction of thumb. |
Griffith Joshua Somers Van Tassell |
OpenStax University Physics Vincent Coletta's College Physics |
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Start with straight fingers and thumb held at a right angle to fingers. Orient hand so that middle, ring and little fingers bend in the plane of the velocity and magnetic field. Velocity: Direction of index finger.Magnetic Field: Direction of middle, ring and little fingers after they are bent. Magnetic Force: Direction of thumb. |
Dix | |||
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Hold index finger, middle finger and thumb so they are all perpendicular to each other. Velocity: Direction of index finger.Magnetic Field: Direction of middle finger. Magnetic Force: Direction of thumb. |
Somers Van Tassell |
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Hold fingers straight and thumb perpendicular to fingers. Velocity: Direction of thumb.Magnetic Field: Direction of fingers. Magnetic Force: Direction of palm. |
Van Tassell | OpenStax College Physics | ||
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Hold index finger, middle finger and thumb so they are all perpendicular to each other. Velocity: Direction of thumb.Magnetic Field: Direction of index finger. Magnetic Force: Direction of middle finger. |
Randall Knight's Physics for Scientists and Engineers. Randall Knight's College Physics. |
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This version either uses a 3D model (the shape in the video at right) or a 'double-L' shape piece of paper (the shape in the diagram at left) to illustrate the right hand rule.
The 'double-L' shape shown in the the diagram at left is something you can easily construct for yourself out of a piece of paper. After cutting out the shape, be sure to label the legs exactly as shown. Just in case it isn't clear, the v and B legs in the diagram point away from you. Note: never open the double-L shape beyond 180 degree or it will not give answers consistent with the right hand rule. |
Somers | |||
| Display hand videos behind or in front of the charge and the vectors in the vector diagram? | |
|---|---|
| Behind | |
| In front | |
Settings are recorded as part of the URL of the main program. Giving the updated URL to students will allow them to open the program with the desired settings.