Question

Why does moist iron core increase the magnetic field of a coil of wire ?​

Answer 1

Answer:

When a soft iron rod also known as the core is inserted inside a solenoid then the strength of the magnetic field increases because the iron ore gets magnetized due to magnetic induction and this combination of the solenoid and the soft iron core is called an electromagnet.

Answer 2

answer:

• When a soft iron rod also known as the core is fitted inside a solenoid also the strength of the magnetic field increases because the iron ore gets bewitched due tomagnetic induction and this combination of the solenoid and the soft iron core is called an electromagnet.
• This soft iron core helps to concentrate all the magnetic lines of forces through the solenoid so that the glamorous field is invariant at the cross-section of the core.
• However, also the magnetic lines of forces start to diverge by curving sprucely incontinently outside the coils If the soft iron core is removed from outside.
• When the space between the coil and the core is reduced also a stronger captivation is convinced in the core, so to have the best electromagnets, we should tightly wound the coils around the core.
• Hence we can say when an iron core is fitted in a coil carrying current, the strength of its magnetic field will increase.

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