Monday, May 13, 2013

Magnetism



First what I learned was that magnets and metals have charges or electrons.  The big idea is that Moving Charges Create Magnetic Fields.  The earth also has this kind of reaction within it.  Withing the outer and inner core of the earth there is a lot of metals.  All of these metals are being melted by the outer core and when heated move faster.  Due to the movement of the charges it creates magnetic fields.  This magnetic field starts at the south side of the earth and comes up to the north side of the earth.  The way to determine which way the current went was with the right hand rule.  By placing your thumb in the direction of the current with your fingers out.  Then you have to curl your fingers above the wire as well as below the wire.  If your fingers are pointed away from you and your palm is facing the page then current is traveling away from you.  If your fingers are pointed towards you and your palm does not face the page then the current is coming toward you.














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