Demonstrates: Deflection of a compass needle near a current carrying wire.
Description: Oersted observed that a compass needle placed near a wire deflected when current flowed. In this demo, a long compass needle deflects one way when current flows in a nearby wire. When the direction of current is reversed, a different deflection is seen.
Instructions:
Items Used: Power supply, Oersted apparatus, banana cables
Notes: Less current causes less deflection. Multiple needles available. Needles take time to stop motion once current is applied. Math Description: None.
