Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test Physics Magnetism and Maxwell's Equations Magnets
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
More than one of the above
5
None of the above