you can find this thing in an electric bell,refrigerator,s door, crane etc.
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I think it's a magnet
Kenzy:
there is no magnet in a door
it is refrigerator's door
but u wrote the question wrong
not my fault
no, I have written correct question
no u have not
Answered by
1
Answer:
Electromagnets
Explanation:
It's a type of magnet where an electric field produces a magnetic field. It has two components; core and wire. The wire is coiled around a core and current passes through the wire which leads to the production of the magnetic field. As the current gets switched off, magnetic field production also stops.
It is more advantageous than permanent magnets as the magnetic field can be quickly controlled by controlling the amount of electric current passing through the wire.
It is the main component of many electronic devices such as generators, loudspeakers, electric bells, refrigerators, cranes, MRI machines, and electromechanical solenoids.
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