Describe the steps involved in observing the magnetic field pattern produced by a current carrying circular coil using iron filings with the help of the given diagram.
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Magnetic field produced by a current-carrying circular coil
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Pattern of the magnetic field produced by a current-carrying circular coil
 
Observations:
 
The magnitude of the magnetic field produced by a current-carrying circular wire at its centre is:
Directly proportional to the the circular wire.
 
Inversely proportional to the the circular wire.
 
The strength of the magnetic field can be by taking a circular coil consisting of a number of turns of insulated copper wire closely wound together.
 
If a circular coil has 'n' turns, the magnetic field produced by this current-carrying circular coil will be as large as that produced by a circular loop of a single turn of wire.