- Simple Electric Motor
- Electromagnetic Swing
Simple Electric Motor - In this Simple Electric Motor project, we create a closed loop circuit that can carry current. Current flows from the negative terminal of the battery, through the circuit, and to the positive terminal of the battery.
Current in a closed loop creates its own magnetic field. In our case, current travels through the coil, which is called the armature of the motor. This current induces a magnetic field in the coil, which helps explain why the coil spins.
Electromagnetic Swing - This Electromagnetic Swing project shows the relationship between electricity and magnetism. A current carrying coil of wire behaves like a magnet. Since the coil is suspended above the magnet, there is a magnetic force driving the coil to swing back and forth. Altering the flow of current could alter the swing movement since the current flow dictates the polarity of the coil.
The Lorentz force (or electromagnetic force) is the science behind this project. By definition, the Lorentz force is the combination of electric and magnetic force. It results from the interaction between the electromagnetic fields.