Why is soft iron used as the core of the electromagnet in an electric bell?

Why is soft iron used as the core of the electromagnet in an electric bell?

Class 10 | Electro Magnetism | ICSE | Physics | Selina

Why is soft iron used as the core of the electromagnet in an electric bell?

Solution:

One of the interesting properties of soft iron is that –

The soft iron bar develops magnetic qualities only when an electric current travels through it. And when the current is turned off, the magnetic properties vanish. As a result, the core of the electromagnet in an electric bell is made of soft iron.

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More Material

A …… lens is used to correct myopia and a ….. lens is used to correct hypermetropia.
A Concave, concave
B Convex, convex
C Convex, concave
D Concave, convex

Rate of reaction of any substance depends on
(A) active mass
(B) molecular weight
(C) atomic weight
(D) equivalent weight

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(A) $\mathrm{H}_{2} \mathrm{~S}_{2} \mathrm{O}_{7}$
(B) $\mathrm{H}_{2} \mathrm{SO}_{4}$
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Use determinants to show that the following points are collinear. $P(-2,5), Q(-6,-7)$ and $R(-5,-4)$

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