why is soft iron used as a core of the electromagnet in an electric bell ?
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Answered by
18
HEY THERE!!!
When switch is made on of electric bell current flowing through the wire can't produce strong magnetic field if core is not used.
The soft iron core of the electromagnet makes the magnetic field stronger.
Also soft iron core loses its magnetism as soon as the current stops flowing when switch is made off , disabling electric bell.
HOPE IT HELPS :) :)
When switch is made on of electric bell current flowing through the wire can't produce strong magnetic field if core is not used.
The soft iron core of the electromagnet makes the magnetic field stronger.
Also soft iron core loses its magnetism as soon as the current stops flowing when switch is made off , disabling electric bell.
HOPE IT HELPS :) :)
Nilanjana5:
thanx a lot :-)
my pleasure :)
^_^
Answered by
8
An electromagnet consisting of a solenoid (copper wire coil) carrying current. The magnetic field exerts force on a metallic arm that oscillates to and fro hitting the bell.
The iron soft core inside copper coil increases the magnetic field strength. So the current required to operate the bell is reduced.
The iron soft core inside copper coil increases the magnetic field strength. So the current required to operate the bell is reduced.
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