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प्रश्न
Select the correct alternative
In a torch, the source of electricity is
पर्याय
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.
What is the direction of flow of current in a dry cell?
______ Cells used in automobiles like cars and buses are large and very heavy.
Primary cells are usually produced in large sizes.
Primary cells are used in mobile phones.
______ was developed is 1887 by Yei Sakizo of Japan
Name the portable form of an avalanche cell.
A torch requires 3 cells. Show the arrangement of the cells, with a diagram, inside the torch so that the bulb glows.
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?
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?
