Question

you are given a dry cell , a torch bulb with holder , wires and crocodile clips . How would you use them to distinguish between samples of metals and non-metals.​

Answer 1

We would create an apparatus using dry cell, a torch bulb fitted in holder and some connecting wires with crocodile clips and connect them to make an electric circuit.

Then insert a piece of sulphur between the crocodile clips and the bulb does not light up at all. This means that sulphur does not allow the electric current to pass through it.

Now insert a piece of copper between the crocodile clips and the bulb will light up.

This observation shows that non metals (ex: sulphur) do not conduct electricity

this above is right solution

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Answer 2

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