Electromagnetic induction.ppt
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e can define motion as the change of position of an object with respect to time. A book falling off a table, water flowing from the tap, rattling windows, etc., all exhibit motion. Even the air that we breathe exhibits motion! Everything in the universe moves
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Electromagnetic induction.ppt
- 2. 3/26/2023 2 Electromagnetism Electricity and magnetism two faces of electromagnetism a moving electric charge produces magnetic fields changing magnetic fields move electric charges
- 3. 3/26/2023 3 Magnetic fields from electricity A static distribution of charges produces an electric field Charges in motion (an electrical current) produce a magnetic field electric current is an example of charges (electrons) in motion
- 4. 3/26/2023 4 Electromagnets Arranging wire in a coil and running a current through produces a magnetic field that looks a lot like a bar magnet called an electromagnet putting a real magnet inside, can shove the magnet back and forth depending on current direction: called a solenoid
- 5. 3/26/2023 5 Induced Current changing magnetic field produces an electric current in a loop surrounding the field called Faradays Law electromagnetic induction.