Demonstration of Biot-Savart law. A wire carrying electric current generates magnetic field around it. For a long straight wire the magnetic field lines form circles around the wire,as it follows from the Biot-Savart law. The magnetic field lines are visualized here by placing small compasses around a wire. When the current is not flowing,the needles point to the Earth's magnetic North (as shown in this photograph). When the current is flowing,the needles follow a circle around the wire. Photo 1 of 2 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Giphotostock |
Bildgröße: | 3402 px × 5124 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: |
|