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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.
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उत्तर
A switch is the source of electric current in a circuit.
Explanation:
An electric cell is the source of electric current in a circuit.
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संबंधित प्रश्न
Describe the construction, working and usefulness of a dry cell, with the help of a diagram.
Name the -ve terminal of a dry cell.
What is dry cell?
Name the scientist who invented the electric cell.
Explain the construction and working of a dry cell.
Assertion (A): Primary cells can not be recharged, they can be used only once.
Reason (R): In vehicles, we use primary cells.
What is meant by a battery or collection of cells?
A battery is a group of ______.
An electric bulb is connected to a cell through a switch as shown in the following figure. When the switch is brought in ‘ON’ position, the bulb does not glow. What could be the possible reason/s for it? Mention any two of them.
Fig. 12.10 A and B, show a bulb connected to a cell in two different ways.
Will the bulb glow in both the cases?
