Question

The handles of the tools like screwdrivers and pliers used by electricians for repair work usually have plastic or rubber covers on them.why?

• A. Plastic and rubber are insulators
• B. Plastic and rubber are good conductors of electricity
• C. They are cheaply available
• D. All of these

Answer 1

The correct option is A Plastic and rubber are insulators

The plastic or rubber that the handles are insulating materials, which do not let electricity pass through it.
Without the help of insulators, the use of electrical tools like pliers and screwdrivers is impossible. Wood and plastics are insulators and help in avoiding direct contact with electric current. When electricians touch these live electric wires with the tools covered with plastic or rubber, the current does not electrocute them.