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प्रश्न
Think of six activities that use electric current. Also, name the devices used to perform the activity.
| Example: | Activity you perform | Device |
| Get light | Torch | |
उत्तर
| Example: | Activity you perform | Device |
| Get light | Torch | |
| Prepare an icecream | Refrigerator | |
| Watch movies | Television | |
| Listening songs | Radio | |
| Talk to someone far | Telephone | |
| Ironing clothes | Electric iron |
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संबंधित प्रश्न
Select the correct alternative
In a torch, the source of electricity is
Name the +ve terminal of dry cell.
The device which converts chemical energy into electrical energy is
Explain the construction and working of a dry cell.
Primary cells are used in mobile phones.
Assertion (A): Primary cells can not be recharged, they can be used only once.
Reason (R): In vehicles, we use primary cells.
Name the portable form of an avalanche cell.
Define electric cell. What is the direction of the electric current in a 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?
