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 formed of long coil of circular loops of insulated copper wire.

When a current is allowed to flow through it, magnetic field lines are produced around the solenoid.

The magnetic field produced by it is similar to the magnetic field of a bar magnet.

When the north pole of a bar magnet is brought near the end connected to the negative terminal of the battery, the solenoid repels the bar magnet.

Since like poles repel each other, the end connected to the negative terminal of the battery behaves as the north pole of the solenoid and the other end behaves as a south pole.

Therefore one end of the solenoid behaves as a north pole and the other end behaves as a south pole.