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1. Define magnetic field.
When the iron filings are placed near a bar magnet, it forms around the magnet. The area surrounding the bar magnet having the iron filings in a pattern showing the .
The around a magnet where the is observed is known as the magnetic field. The units or measure the magnetic field.
2. What is artificial magnet? Give examples.
Artificial magnets are magnets that are made by in a . These are also known as , and they are than natural magnets.
Some of the examples are , , and .
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