The magnitude of magnetism produced by an electric current in a wire depends upon- (a) Increases with an increase in the strength of electric current (b) Decreases, as the distance from the wire increases

A common household device, that do not use an electromagnet in its working, is-

The filament of A bulb, is a wire of

The heating coils/elements of different electrical appliances are usually made from ________ or ________ wires.

1. Copper 2. Aluminum 3. Nichrome 4. Tungsten

When electric current flows through the metal filament of the bulb it gets heated to very high temperature and becomes______ hot and start emitting _______.

When electricity flows through heating coil it becomes ________ hot and gives out _______ energy, which is to put in practical use.