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प्रश्न
Fill in the blank
In a torch we use ______ as the source of electricity.
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उत्तर
In a torch we use dry cell as the source of electricity.
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संबंधित प्रश्न
Name two sources of electricity.
Describe the construction, working and usefulness of a dry cell, with the help of a diagram.
What is the direction of flow of current in a dry cell?
Secondary cell can be used only once.
______ Cells used in automobiles like cars and buses are large and very heavy.
What is meant by a battery or collection of cells?
______ cell is used to operate devices such as mobile phones, computers, and emergency lights.
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.
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?
