The unit of electric current is

The necessary requirement for a fuse wire is

A fuse wire should have

Which of the following is an insulator?

Which of the following is preferred to make an electromagnet?

Which mark is necessary on electric appliances?

The instrument used to measure the electric current

The device used instead of fuse in household electric circuit is

What is the SI unit of charge?

In a  primary cell,  the chemical energy is converted into