Remember the story of Michael Faraday I told you last night. He pioneered the field of electromagnetism. He studied electricity and magnetism. It is largely because of his effort that electricity becomes available for use in technology.
All motor, generators and transformers are based on the electro-magnetic principles that he discovered. Electromagnetism means that changing magnetic field field produces electric current.
Faraday proposed that electromagnetic forces extended into the empty space around the conductor. Nobody believed him at first and it was established only after his death. He came up with ideas about how to think and visualize the electromagnetic fields. Here's how the fields look like around the magnet:
It is easy to draw magnetic fields using compass. We did that as science experiment in schools. See the picture below:
We can do it at home if you like.
Michael Faraday was a great scientist who invented many other things. You can read more about him here.
Love,
Papa
Michael Faraday was a great scientist who invented many other things. You can read more about him here.
Love,
Papa
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