Question

A soft iron bar is introduced inside the current-carrying solenoid. The magnetic field inside the solenoid ____________.

Options

• will decrease

• will remains same

• will remains same

• will become zero

Answer 1

A soft iron bar is introduced inside the current-carrying solenoid. The magnetic field inside the solenoid will decrease.

Explanation:

Iron is a substance that is strongly ferromagnetic. As a result, it allows the greatest possible number of field lines to travel through it.

When a current-carrying solenoid is taken, it generates a magnetic field both inside and outside the solenoid.

When a soft iron bar/core is inserted into the solenoid, it magnetizes the iron bar, increasing the magnetic field intensity inside the solenoid.