"Whem a soft iron bar is introduced inside a current carrying solenoid, the magnetic field inside the solenoid will increase." Why??

Asked by Saunak Mukherjee | 14th May, 2014, 12:29: PM

Expert Answer:

Iron is highly ferromagnetic material. Hence, it allows maximum number of field lines to pass through it.
When current carrying solenoid is taken, it produces its own magnetic field inside and outside the solenoid.
When a soft iron bar/core is placed inside the solenoid, it magnetizes the iron bar thereby increasing the strength of the magnetic field inside the solenoid.

Answered by Romal Bhansali | 15th May, 2014, 10:07: AM