Question

Write any two applications of the heating effect of current.

Answer 1

1. The heating effect of current has various applications. It is used in electrical appliances such as electric heaters, electric bulbs, electric toasters, electric iron, electric kettles, etc.
2. Electric heater: An electric heater contains a heating element made of nichrome alloy that has high resistance. When an electric current is passed through this heating element, a large amount of heat is produced.
3. Electric bulb: An electric bulb consists of a tungsten filament. This filament has a larger value of resistivity and a high melting point. When electric current flows through the filament, it gets heated to a high temperature and becomes white-hot and starts emitting light.