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Electromagnetism

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Electromagnetism
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स्टोरीबोर्ड पाठ

  • At the Science Lab the students were asked by their teacher question on the electromagnets unit they had just finished
  • Can some one tell me what an electromagnet is?
  • Mrs.Powers, A electromagnet is a magnet made by using an electric current around an iron core
  • Good!Now can anyone tell me how they work?
  • You need a battery and a coil wire. You connect the wire to the battery and the electric current flows through the wire and then it can become a magnet
  • Who can tell me a important fact of an electromagnet
  • They increase the strength: by increasing the voltage, coils, and tightening the wire
  • They will always need an electric current and they have a direct current which is electricity that travel in one direction thru a closed circuit and is produced by a battery
  • My favorite is Oersted, because he showed how a current carrying wires behave like a magnet and without him the other scientist would not be able to formulate the Electromagnetic Wave Theory
  • Very Good you guys. I'm really happy that you guys understood the electromagnets unit
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