Advertisements
Advertisements
प्रश्न
Explain how lightning takes place.
Advertisements
उत्तर
During the development of a thunderstorm, the air currents move in upward direction while the water droplets move in downward direction. These movements cause separation of charges. The positive charges collect near the upper edges of the clouds and negative charges collect near the lower edges of the clouds.
Accumulation of positive charges near the ground also takes place. When the magnitude of collected charges become large, the air cannot resist their flow and as a result, negative and positive charges meet producing streaks of bright light and sound, called lightning.
APPEARS IN
संबंधित प्रश्न
Answer in your own words.
How are charges generated?
Answer in your own words.
Why is lightning not seen every day during the rainy season?
What are the remedial measures for the following calamity:
Lightning strike
During the construction of a building, the lightning conductor was left hanging in the air by mistake. Would the lightning conductor be still effective? Explain.
Identify the lightning conductor and the copper plate in the following figure.
Explain how does lightning conductor protects a building from getting struck by lightning.
Explain why it is safer to use a wireless telephone instead of a landline telephone during lightning.
What precautions would you take if lightning occurs while you are outside the house?
Lighting rods are made of ______.
During thunderstorms, the air is moving ______ rapidly. This air moves rapidly.
______ extreme heat will vaporize the water inside a tree, creating steam that may burn out the tree.
______ arrestor is a device used to protect buildings from the effects of lightning.
How does thunder take place?
Sometimes lighting may be seen before the thunder is heard. Why?
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
