Question

Name the effect of current responsible for the glow of the bulb in an electric circuit.

Answer 1

Step1:Heating effect

1. When an electric current is supplied to a purely resistive conductor, the energy of the electric current is dissipated entirely in the form of heat and as a result, the resistor gets heated.
2. The heating of resistor because of dissipation of electrical energy is commonly known as the heating effect of electric current.
3. When the current passes through the bulb it heats the filament which gives off light.
4. A filament has a lot of resistance to electricity.
5. The filament which is generally made up of tungsten then heats up and becomes red-hot and as a result it begins to glow, turning electrical energy into light energy.

Step2: Use of heating effect

1. Electric current’s heating effects are commonly used in our daily lives.
2. Electric irons, kettles, toasters, heaters, and other appliances are utilized as alternatives to traditional cooking and laundry processes.
3. Electric bulbs, which are an alternative to traditional lighting, utilize the same concept.

Thus, the heating effect is responsible for the glowing of the bulb in an electric circuit.