A coil of many circular turns of insulated copper wire wrapped closely in the shape of a cylinder is called a Solenoid. The field lines around a current-carrying solenoid is similar to that produced by a bar magnet. This means that a current – carrying solenoid behaves as having a north pole and the South Pole. The strong magnetic field produced inside a solenoid can be used to magnetise a piece of magnetic material like soft iron when placed inside the coil.
A cylindrical coil of wire acting as a magnet when carrying electric current.A current carrying solenoid induces a magnetic field around it.A solenoid has a large number of close, insulated circular turns. The magnet at the centre of current carrying circular wire is along the axis; so when current is passed in a solenoid, the magnetic fields due to all circular turns are added and hence the field line becomes just as for a bar magnet. Solenoids are most commonly used as electromagnets.
Solenoid is a conducting wire wound around an insulating material. A current carrying solenoid induces a magnetic field around it.A solenoid has a large number of close, insulated circular turns. Solenoids are most commonly used as electromagnets.