Biot-Savart law, 2 of 2

Biot-Savart law, 2 of 2

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This image is part of the sequence sceince and technology: demonstration of Biot-Savart law

Credit: GIPHOTOSTOCK/SCIENCE PHOTO LIBRARY

Caption: 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. When the current is flowing, the needles follow a circle around the wire (as shown in this photograph). Photo 2 of 2.

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Keywords: biot, biot-savart, biot-savart law, compass, compass needles, current, demonstration, education, educational, electric, electric current, electricity, electromagnetic, electromagnetism, experiment, field, field line, law, magnetic, magnetism, needle, physics, savart, seamless, still life, wire

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