Question

What happens when a soft iron bar is inserted in a current carrying solenoid

Answer 1

1. When electricity is passed through a conductor, the magnetic field is produced around it
2. This is due to the magnetic effect of electric current
3. One of the factors affecting the strength of the magnetic field around a current carrying solenoid is the soft iron core.
4. When a soft iron bar is inserted inside a current carrying solenoid, it increases the intensity of the magnetic field around it.
5. It is because soft iron allows a maximum number of field lines to pass through them.

So when a soft iron is inserted inside a current-carrying solenoid, it increases the strength of the magnetic field around it.