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
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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.
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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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