This document discusses three phenomena related to electromagnetism: the force on a charge in a magnetic field, the force on a current-carrying wire, and the induced voltage in a moving wire. Videos are provided to visually demonstrate the left-hand rule determining the direction of force on an electron moving through a magnetic field, the direction of force on a current-carrying metal rod placed in a magnetic field, and the polarity of induced voltage in a metal rod moving perpendicular to a magnetic field.

1. Integrating Electromagnetism

2. The force on a charge in a magnetic field The force on a current carrying wire. The induced voltage in a moving wire are often taught as separate phenomena….

3. The first video shows the force on an electron moving perpendicular to a magnetic field.

4. Lorentz 1.MOV

5. The electron is pushed to the right (direction given by LHS rule).

6. The second video shows the force acting on a metal rod carrying a current across a magnetic field.

7. Lorentz 2.MOV

8. The force on the electrons (and hence the rod) is given by the LHS rule.

9. The third video shows the voltage induced in a metal rod moving perpendicular to a magnetic field. A

10. Lorentz 3.MOV

11. The force on the electrons and thus the polarity is given by the LHS rule. A