Why the switches and plugs are made of plastics?
Plastics are poor conductor of electricity and resistant to heat, so they do not allow the electric current to pass through them making them safe to handle. So they are used to make electric switches and plugs.
What are thermosetting plastics?
Out of the following materials :
Cotton, Nylon, Terylene, Wood, PET, Acrylic
Which materials are polyesters?
What are thermoplastics? Explain with examples.
Why the handles of the utensils are made of bakelite?
