12.4 Interaction between Electric Currents and Magnetic Fields
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Transcript of 12.4 Interaction between Electric Currents and Magnetic Fields
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12.4 Interaction between Electric Currents and Magnetic Fields
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Single Charge
• Produces a magnetic field
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Current of Charges
• Produces a magnetic field
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Compasses around the wire can help you detect the field.
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More loops in a wire
• the stronger the magnetic field
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Electromagnet
• Iron surrounded by a current carrying wire
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Uses
• Separating scrap metal
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CERN
• European Center for Nuclear Research
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CERN
• Geneva, Switzerland
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Barrell Toroid
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Barrell Toroid
• Atlas Detector – particle detector at CERN• Goals of Atlas– Why do particles have mass?– What makes up 96% of the universe?– Why does the universe prefer dark mater?
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Altas
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Altas used to find Higgs Boson
• Particle is believed to gives particles mass
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Uses for Superconducting Magnets
• Trains
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Uses for Superconducting Magnets
• MRI– Magnetic resonance imaging
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