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.
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Instructions:
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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.
Size: 9 Condition: Good. Hazard: None.
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Schematic:
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History: |