Title: Magnetic Force on Current Carrying Conductor
PIRA: 5H 60.10
Demonstrates: Demonstrates the force a current carrying conductor will feel due to the magnetic field it rests in. F = IL x B
Description: A graphite rod is placed on top of the conducting rails apparatus. Below the apparatus strong magnets are placed (neodymium are available). When a current is run through the apparatus, the graphite rod will feel a force, and move in a direction based on the magnetic field and current directions; the direction of the current can be reversed to have the rod move in the opposite direction.
Instructions: Place apparatus on table. Place magnets below the apparatus. When placing the graphite rod, make sure it is touching both rods; demo works best when rod is directly above a magnet. Connect the power supply (big blue ones work best). When power supply is turned on, the graphite rod should roll, and there will be small sparks.
Notes: If rod doesn't roll, check to make sure a good connection is being made by reading the amp meter on the power supply. Turn off power supply before making any changes to rod's positioning. Placing rod directly above magnet will also help. Math Description:
Size: Condition: Good. Hazard: High current (10+ A) be very careful.
