Question

Why can't you draw wires from a piece of wood or coal

Answer 1

There are many reasons why a wire cannot be drawn from charcoal or wood

They are the insulators and prevent the current from passing through the wires even if the power is drawn.

They don’t have ductile property and this property is very essential to draw the wires

Answer 2

If we talk about a piece of wood, then we know the following properties about it:

1. It is an insulator of electricity or we can say that it is a bad conductor of electricity

2. It is not malleable i.e. it can not be hammered such that it gets converted into a sheet.

3. It is not ductile i.e. it cannot be used to form wires.

4. It is porous to certain extent.

5. It is a bad conductor or an insulator of heat.

The most important characteristics which we usually require to make wires are conductors of electricity and ductility.

Now, we see that none of these properties are present in a piece of wood, hence we do not draw wires from a piece of wood.