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प्रश्न
A torch requires 3 cells. Show the arrangement of the cells, with a diagram, inside the torch so that the bulb glows.
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उत्तर
The bulb will be connected to the positive and negative terminals.
The arrangement of the cells will be as follows:
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संबंधित प्रश्न
Fill in the blank
In a torch we use ______ as the source of electricity.
The device which converts chemical energy into electrical energy is
Arrange in sequence
| A CELL | A DEVICE | ELECTRICAL ENERGY |
| IS CALLED | IN TO | CHEMICAL ENERGY |
| THAT CONVERTS |
Secondary cells are used in ______.
Which one of the following is using secondary using cells?
Assertion (A): Primary cells can not be recharged, they can be used only once.
Reason (R): In vehicles, we use primary cells.
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 |
Name the substance that becomes ions in solutions and acquires the capacity to conduct electricity.
Define electric cell. What is the direction of the electric current in a cell?
Think of six activities which use electric current. Also name the devices used to perform the activity.
| Example: | Activity you perform | Device |
| Get light | Torch | |
| ___________ | -------------- | |
| ___________ | -------------- | |
| ___________ | -------------- | |
| ___________ | -------------- |
