Why do electrical wires have plastic covering?

More Questions

• Why are electric wires coated with pvc?
• How to remove wires from plastic connector?
• What is immaterial for an electric fuse wire?
• How to connect nichrome wire to copper wire?
• How to calculate electricity duty in electricity bill?
• What is the difference between static electricity and electric current?
• What is the source of electricity in an electric cell?
• What is electricity duty in electricity bill?
• Why is an electric fuse required in all electrical appliances?
• Why static electricity in human body?