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Magnetism from electricity

Magnetism from electricity. Magnetism from electricity. In 1820, Danish scientist Han Christian Oersted discovered accidently that when electricity passed through a wire…a magnetic field was created. Which way would the compass needles point if we placed them around the wire?.

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Magnetism from electricity

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  1. Magnetism from electricity

  2. Magnetism from electricity • In 1820, Danish scientist Han Christian Oersted discovered accidently that when electricity passed through a wire…a magnetic field was created

  3. Which way would the compass needles point if we placed them around the wire?

  4. Without a current….with a current A magnetic field is induced by the current

  5. Electromagnet • A current carrying coil of wire with many loops is called an electromagnet

  6. Superconducting electromagnets The most ignominious military use of superconductors may come with the deployment of "E-bombs". These are devices that make use of strong, superconductor-derived magnetic fields to create a fast, high-intensity electro-magnetic pulse (EMP) to disable an enemy's electronic equipment. Such a device saw its first use in wartime in March 2003 when US Forces attacked an Iraqi broadcast facility. 

  7. Lab-Make an electromagnet • http://www.magnet.fsu.edu/education/tutorials/slideshows/electromagnet/index.html • file:///J:/ConceptualPhysicsWorksheets/Lab%20-%20Making%20an%20Electromagnet%20Activity.htm

  8. Magnetism and Electricity are related Magnetism from Electricity Electricity from Magnetism • A moving charge (electron) a magnetic field • Many moving charges (an electric current) produce a magnetic field

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