Voltage Induced in a Coil by Moving Magnet
Model ID: 14163
A magnet moving axially through the center of a coil will induce a voltage across the coil terminals. One practical application of this is in shaker flashlights, where the flashlight is vigorously shaken back and forth, causing a magnet to move through a multi-turn coil, which provides charge to the battery. In this model, the motion of a magnet through a coil is modeled, and the induced voltages are computed. The displacement of the magnet is significant, so a moving and sliding mesh is used.
|Drawing of a Multi-Turn Coil and an oscillating magnet. The graph is an induced voltage in the coil.|