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Q.

The electric cables are made of metal wires because


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a

Metals do not conduct electricity

b

Metals conduct electricity

c

Metals are insulators

d

Metals are both insulators and conductors 

answer is B.

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Detailed Solution

Electric cables are made of metal wires because metals conduct electricity.
A good conductor of electricity allows heat to pass through them. Metals are good conductors of electricity as they allow electricity to pass through them. This helps in the working of electrical equipment. The wires are often insulated with a plastic covering, which prevents us from getting an electrical shock.
 
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