Question

Why does an iron core increase the magnetic field of a coil of wire
(i) The iron atom line up to add the magnetic field
(ii) Iron attract things includes magnetic fields
(iii) The iron core actually decrease the field, allowing it to be turned off

Answer 1

Hey mate ☺️

(i) The iron atom line up to add the magnetic field

I Hope it helps you ☺️ ✌️ ✌️

Answer 2

Answer:

The iron core increases the magnetic field of a ‘coil of wire’ because the iron atom line up to add the magnetic field.

Explanation:

• When an iron core is wrapped with a coil of wire, the electromagnetic field strength remains greater than that of the coil without iron core.
• This is due to the ‘lining up of the atoms’ in the iron to amplify its magnetic field through its domain orientation.