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प्रश्न
Choose the incorrect statement.
पर्याय
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
Write true or false for a given statement.
We use cell as the source of electricity to run an electric immersion rod.
Fill in the blank
In a torch we use ______ as the source of electricity.
Mention two advantages of a dry cell.
Secondary cell can be used only once.
Which one of the following is using secondary using cells?
______ cell is used to operate devices such as mobile phones, computers, and emergency lights.
Name the portable form of an avalanche cell.
Write the differences between the primary cell and the secondary cell.
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?
Fig. 12.10 A and B, show a bulb connected to a cell in two different ways.
What will be the direction of the current through the bulb in both the cases. (Q to P or P to Q)
