Advertisements
Advertisements
प्रश्न
Why are compact fluorescent lamps (CFLs) preferred over electric bulbs?
Advertisements
उत्तर
CFLs do not waste electricity as heat, unlike electric bulbs.
APPEARS IN
संबंधित प्रश्न
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: ______
Explain the construction and working of an Telephone.
Water can conduct electricity.
Electrical resistivity of a given metallic wire depends upon
Which of the following solutions will not make the bulb in figure?
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?
Which property of a conducting wire is utilised in making electric fuse?
Choose from the options a, b, c and d given in the following figure which shows the correct direction of current.
