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प्रश्न
A torch is not functioning, though contact points in the torch are in working condition. What can be the possible reasons for this? Mention any three.
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उत्तर
The reason for the faulty functioning of the torch can be:
- The cells may be disorganised.
- The filament of the bulb might be fractured, causing the bulb not to ignite.
- The cells may be depleted.
- The switch is defective.
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संबंधित प्रश्न
One unit of coulomb is charge of approximately ______ protons or electrons.
Match the following
| 1. | Cell | used to open or close a circuit |
| 2. | Switch | safety device used in electric circuit |
| 3. | Circuit | A complete path for the flow of an electric current |
| 4. | Miniature circuit Breaker | Reset by hand, circuit becomes complete once again |
| 5. | Fuse | A device which converts chemical energy into electrical energy |
Length: metre scale: : Current: ______
Boojho made the circuit given in the figure and observed that the bulb did not glow. On Paheli’s suggestion he added one more cell in the circuit. The bulb now glows. Explain.
Which of the following precautions need not be taken while using electric gadgets/appliances/circuit?
Why is an electric fuse required in all electrical appliances?
Electricity produced on rubbing is ______.
A tiny particle that rotates around the nucleus of an atom is ______.
Choose from the options a, b, c and d given in the following figure which shows the correct direction of current.
In an electric bulb, light is produced due to the glowing of ______.
