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प्रश्न
Select the correct alternative
In a torch, the source of electricity is
पर्याय
the bulb
the switch
the cell
the mains
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उत्तर
the cell
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संबंधित प्रश्न
What is dry cell?
Name the scientist who invented the electric cell.
The device which converts chemical energy into electrical energy is
Secondary cell can be used only once.
Explain the construction and working of a dry cell.
A chemical solution that produces positive and negative ions is used as ______.
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 |
What is the source of electric current in a T.V. remote?
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.
Does the brightness of the glowing bulb depend on the direction of current through it?
