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प्रश्न
Select the correct alternative
In a torch, the source of electricity is
विकल्प
the bulb
the switch
the cell
the mains
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उत्तर
the cell
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संबंधित प्रश्न
State two precautions that you must take when switching on an electric circuit.
Describe the construction, working and usefulness of a dry cell, with the help of a diagram.
An electric cell has ______ terminals.
Analogy.
Primary cells:: Toys
Secondary cells:: ______.
What is meant by a battery or collection of cells?
______ cell is used to operate devices such as mobile phones, computers, and emergency lights.
A battery is a group of ______.
Define electric cell. What is the direction of the electric current in a cell?
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 which use electric current. Also name the devices used to perform the activity.
| Example: | Activity you perform | Device |
| Get light | Torch | |
| ___________ | -------------- | |
| ___________ | -------------- | |
| ___________ | -------------- | |
| ___________ | -------------- |
