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.

Explanation

A current-carrying coil of many circular turns of insulated copper wire closely wrapped in the shape of a cylinder is called a solenoid. One end of the solenoid behaves as a magnetic north pole, while the other end behaves as the south pole . The field lines inside the solenoid are parallel straight lines.
We can take a bar magnet with a known north pole near one end of the solenoid. If it shows repulsion, that end of the solenoid is the north pole and the other end is the south pole.