How does a solenoid behave like a magnet? Can you determine the north and south poles of a current–carrying solenoid with the help of a bar magnet? Explain.

A solenoid is a long coil that contains a large number of close turns of insulated copper wire. When a power source is connected to both its ends then it behaves like a magnet bar.

Let us see the diagram below that represents a solenoid.  Both ends of a coil containing a large number of close turns of insulated copper wire are connected to a battery B through a switch X. When a current is passed through it, it behaves like a magnet bar and a magnetic field can be experienced around it.