PIRA Classification: 5H15.50
Description: A Plexiglas plate has a toroid sticking out of its surface. The toroid is connected to a power supply. Iron filings are sprinkled around the wires and current is passed through. The filings align with the resultant field.
Special Instructions: Tap the Plexiglas to encourage alignment.
Condition: Good
Setup time: 2 minutes
Safety Issues: Wires can become hot.