140k views
13 votes
Why is an electromagnet used instead of a permanent magnet in magnetic cranes?​

User Lironess
by
7.7k points

1 Answer

1 vote

Answer:

an electromagnet is a metal which has the ability to turn into a magnet on passing electricity through it .

But once the electric flow is withdrawn the circuit breaks and it no more behaves like a magnet.

but this is not so in permanent magnets

Step-by-step explanation:

thus electromagnet is used in magnetic cranes bcoz their magnetism can be controlled conveniently.

User Mathias Asberg
by
7.6k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.