Oersted's effect

Back to 5H - Magnetic fields and forces
PIRA index: 5H10.20

Description

A current passing through a wire creates a magnetic field around it.

Equipment

• Short wire
• Compass
• DC Power supply (10 A)
• Push button with 1 Ohm resistances.

Instructions

• Plug the power supply to the wire through the push buttons with the 1 Ohm resistance
• Place the compass above or below the wire
• Push the button for a few seconds and watch the needle move