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प्रश्न
Fill in the blank
In a torch we use ______ as the source of electricity.
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उत्तर
In a torch we use dry cell as the source of electricity.
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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.
Describe the construction, working and usefulness of a dry cell, with the help of a diagram.
What is the direction of flow of current in a dry cell?
Name the scientist who invented the electric cell.
Secondary cell can be used only once.
Which one of the following is using secondary using cells?
______ was developed is 1887 by Yei Sakizo of Japan
Match the following
| 1. | Dry cells | a. | Reversible |
| 2. | Electrolyte | b. | Opens or closes the circuit |
| 3. | Switch | c. | Solution |
| 4. | Secondary cell | d. | Torches |
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?
Figure 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)
- Will the bulb glow in both the cases?
- Does the brightness of the glowing bulb depend on the direction of current through it?
