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प्रश्न
Name two sources of electricity.
उत्तर
- dry cell and battery
- generator and solar cell
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संबंधित प्रश्न
Fill in the blank
In a torch we use ______ as the source of electricity.
What is the direction of flow of current in a dry cell?
Secondary cell can be used only once.
An electric cell has ______ terminals.
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 portable form of an avalanche cell.
Name the substance that becomes ions in solutions and acquires the capacity to conduct electricity.
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?
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?
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 | |
