Advertisements
Advertisements
प्रश्न
Can the cell used in the clock gives us an electric shock? Justify your answer.
Advertisements
उत्तर
- The cell used in the clock will not give us an electric shock because the voltage of that cell is very low nearly 1.5 v.
- So it will not affect our body.
APPEARS IN
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?
Name the +ve terminal of dry cell.
Secondary cells are used in ______.
Analogy.
Primary cells:: Toys
Secondary cells:: ______.
A chemical solution that produces positive and negative ions is used as ______.
Name the portable form of an avalanche 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?
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?
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 | |
| ___________ | -------------- | |
| ___________ | -------------- | |
| ___________ | -------------- | |
| ___________ | -------------- |
