A teacher has wound a long piece of copper wire around an iron nail in the form of a coil. Free ends of the wire are connected to a cell through a switch to complete the circuit. What will happen when the switch is closed ?  

1
The iron nail will behave like a permanent magnet 
2
The iron nail will behave like a fuse 
3
The iron nail will behave like a temporary magnet 
4
The iron nail will get demagnetized 
5
Question Not Attempted

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