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प्रश्न
Choose the incorrect statement.
विकल्प
A switch is the source of electric current in a circuit.
A switch help to complete or break the circuit.
A switch helps us to use electricity as per our requirement.
When the switch is open there is an air gap between its terminals.
उत्तर
A switch is the source of electric current in a circuit.
Explanation:
An electric cell is the source of the electric current in a circuit.
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संबंधित प्रश्न
Fill in the blank
In a torch we use ______ as the source of electricity.
What is dry cell?
Mention two advantages of a dry cell.
Can the cell used in the clock gives us an electric shock? Justify your answer.
Primary cells are used in mobile phones.
A chemical solution that produces positive and negative ions is used as ______.
A battery is a group of ______.
Write the differences between the primary cell and the secondary cell.
When the chemicals in the electric cell are used up, the electric cell stops producing electricity. The electric cell is then replaced with a new one. In case of rechargeable batteries (such as the type used in mobile phones, camera and inverters), they are used again and again. How?
Paheli wanted to glow a torch bulb using a cell. She could not get connecting wires, instead, she got two strips of aluminium foil. Will she succeed? Explain, how?
