Question
A pencil sharpened at both the ends can be used as a conductor in laboratory.

Answer

$-$When the pencil is sharpened at both ends, a pencil leads come out from both the ends.
$-$Pencil lead is made up of graphite and graphite is a good conductor of electricity.
$-$Therefore, it can be used as a conductor in the laboratory.
`

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free