Question

47. The screwdriver used by an electrician has a plastic or wooden handle. Why?

Answer 1

• Metals are considered a good conductor of heat as they have free electrons. But non-metals are poor conductors of heat.
• The front portion of the screwdriver is made up of Iron. Iron is a metallic substance, hence, it is a good conductor of heat and electricity.
• The handles are made up of non-metals such as wood and plastic which are poor conductors of heat and electricity, that do not conduct heat to pass through and helps in preventing electric shocks.