Science, asked by pragya595, 1 year ago

1.A copper piece cannot be changed into magnets.why? 2. Naked wire should not be used to make electromagnet.why? plz its urgent .plz plz

Answers

Answered by opinder63

Copper is used because it has a low electrical resistance (see conducting properties). This means that it is easy for the current to flow through it. Also, copper wire can be easily shaped to make a coil. ... The field of the electromagnet is similar to the field of a bar magnet.

opinder63: The d-orbital can hold a maximum of 10 electrons, so copper has no unpaired d-electrons. Magnets can be made from substances that have permanent magnetic domains. ... Pure copper can't be made into a magnet because it doesn't have these magnetic domains.

Answered by Anonymous

1. A copper piece cannot be changed into magnets, because -

• Only the ferromagnetic metals (the metals which have magnetic properties) can be changed into electromagnets or permanent magnets.

• But,copper is not a ferromagnetic metal and that's why we cannot change the copper into any kind of magnets

2. Naked wire should not be used to make electromagnet, because -

• In electromagnet we use coil of conducive wire,and the two respective layers of the coil are closely situated with each other.

• Now,if we use completely naked wire,then the chances of short circuit will increase and the electromagnet will become no longer usable.

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