Which of the following saves an electric device connected in a circuit without tripping off the whole electricity of the house?

A new device which is an alternative to an electric fuse .

In an electric circuit diagram ,the term denoted by the arrow marked over the connecting wire symbol is called 

Electric battery was inverted by

The magnetic effect of electric current was first studied by.

A device that produces light and heat on flow of current through it .

A fuse wire is usually made up of an alloy of  lead and

What happens when two wires touch each other ?

A battery is a device that stores energy as