Advertisements
Advertisements
प्रश्न
Give a reason for the following.
One should not use an umbrella while crossing an open field during thunderstorm.
Advertisements
उत्तर
Reason:
- Carrying an umbrella is not advisable during a thunderstorm.
- As the rod of the umbrella and its supporting wires are made up of metals.
- Thus during a thunderstorm, the conducting object should be avoided.
APPEARS IN
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 |
Water can conduct electricity.
Name the effect of current responsible for the glow of the bulb in an electric circuit.
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.

Why are compact fluorescent lamps (CFLs) preferred over electric bulbs?
Why is an electric fuse required in all electrical appliances?
Electricity produced on rubbing 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 ______.
