Question

what are metal, insulator, semiconductor

Answer 1

Metal is the good conductor of heat and electricity and it is lustrus, it can be drawn into wire and thin sheet, it is hard except graphite and pottasium.
Insulator us bad conductor of electricity. It has more resistence it can't follow electicity in it.



For semiconductor soorry i don't know

Answer 2

1.Metals
Metals are kind of substances that are good conductors of electricity. They are used in making utensils, wires etc. They have highest conductivity.
( examples: copper,zinc)

2.Insulators
They are substances that do not allow any electricity or heat to pass through them hence they are bad conductors of electricity.They have least conductivity.
( example: paper, wood)

3. Semiconductors
They have conductivity between metals and insulators mainly because of impurities present in them.
( example: silicon, germanium);

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