Question

There are two boxes One made of metal and another made of wood which are similar in appearance how will you find out which box is made of metal

Answer 1

ITS so simple

Just pass electricity through both boxes and a bulb at the end of each circuit .

The bulb will glow in the case of metal box .

Because metals are conductors of heat and electricity wheres wood is a insulator

Thats it.

Answer 2

Answer:

metals are usually attracted by magnets.take a strong magnet and place it near both the boxes.the box which gets attracted by the magnet will be the box made up of metal.

Or, pass electricity through both the boxes.since metals are conductors of electricity ,the box will allow electricity through it. Its the opposite for wooden box.

hope it helped:)