Question

under what conditions permanent Electromagnet is obtained if a current carrying solenoid is used support your answer with the help of a labelled circuit diagram
please draw the diagram also​

Answer 1

Answer:

The following conditions are required to obtain permanent electromagnet when a current carrying solenoid is used: ...

The current through the solenoid should be direct current.

The number of turns in the solenoid should be large and closely packed, so that a strong uniform magnetic field inside it is produced.

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