In an electric bulb there are two metal contacts at the base which connect to the ends of an electrical circuit. The metal contacts are attached to two stiff wires which are attached to a thin metal filament. … The wires and the filament are housed in a glass bulb, which is filled with an inert gas, such as argon.
How does a electric bulb work?
In an incandescent type of bulb, an electric current is passed through a thin metal filament, heating the filament until it glows and produces light. … After the electricity has made its way through the tungsten filament, it goes down another wire and out of the bulb via the metal portion at the side of the socket.
How does an electric bulb work class 6?
The bulb has two thick contact wires in the center with a thin wire attached between them. This thin wire is called filament. … When electricity is passed through the terminals of the bulb, the filament gets heated up and produces light. A bulb is said to be fused if the filament gets broken.
How does a light bulb work diagram?
An electric current passes through the filament, heating it to a temperature that produces light. … The enclosing glass enclosure contains either a vacuum or an inert gas to preserve and protect the filament from evaporating. Diagram showing the major parts of a modern incandescent light bulb.
What is an electric bulb short answer?
An electric bulb refers to an electric lamp which consists of a translucent or transparent glass housing. It is also known as a light bulb. This simple device has been used for the purpose of illumination for more than a century. Electric bulb refers to a device which produces light on the application of electricity.
Why does an electric bulb glow?
The typical incandescent light bulb contains a thin wire (usually tungsten) called a filament that has a high electrical resistance. This filament gets very hot when an electric current passes through it. The intense temperature makes the filament glow brightly.
How does a bulb light up when the electric current is switched on?
Due to the heating effect of electric current, the bulb glows when the electric current passes through it. The filament of the bulb gets heated to a high temperature and it starts glowing.
What is the purpose of using an electric switch Class 6?
Solution: The purpose of an electric switch is to complete or break the circuit. Electrical gadgets that have switches built into them are fan, refrigerator, television, microwave oven, electric cookers. 6.
What is an electric circuit for Class 6?
The electric circuit is an arrangement that provides a pathway for the flow of electric current. It is a device comprising of switches, bulbs, wires and an electric cell.
What is an electric cell for Class 6?
An electric cell is a device which produces electricity capable to run smaller appliances like torch, clock, camera, radio etc. An electric cell has two terminals – positive (+) and negative (-). Positive side of an electric cell has a metal cap. Negative side has a flat metal disc.
What does a bulb do in a circuit?
A bulb converts electrical energy to light. When electric current flows through it, the bulb produces light. A switch stops and allows the electricity to flow through the circuit.
What will happen if we add another bulb to a parallel circuit?
As more bulbs are added in parallel, the current strength will decrease OR. As more bulbs are added in parallel, the current strength will increase.