Question

1. What is lightining conductor ??

2. How does lightining conductor prevent damage to building during lightining ?

3. Write two damaging effects of lightining ?

4. In what ways is lightining useful ?

Please answer these !!;

Answer 1

1 .lighting conductor protects building in case thunder strikes the building.
2.Lightning conductor prevents damage to building during lighting by transferring current to the ground.
3. it can cause harm to human health
it can cause harm to property
4. It is useful as it makes cloud bursts and so rain happens and cool down the temperature in summer

Answer 2

heya !!!

here, are your required answers :

1. Ans :

A lightining conductor consists of long, thick metal rod/ strip having sharp spikes at it's upper end. The spikes pointing towards the sky are fixed at the highest points of the buildings . The lower end of the metal rod/ strip is connected to a large copper ( or aluminum) plate which is buried deep inside the earth.
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2. Ans :

When a highly charged cloud passes over a tall building, it induces an opposite charge on the spikes . The charge quickly flows to the earth through the copper rod/ strip. Thus, the lightining discharge is prevented and the building is saved from Damage..
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3. Ans :

lightining in the sky affects Radio, Television transmission/ reception. Due to the atmospheric disturbances, We get crackling noise on our radio, landline phone / TV during rainy season.

When lightining strike a building or tree, it can set them on fire. lightining can burn and cause death of living beings.
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4. Ans :

Useful effects of lightining :-

1. Fixation of atmospheric nitrogen by electric discharge during lightining.

During rains, when lightining strikes nitrogen and oxygen of the atmosphere combine to form nitric acid after series of reactions. Rainwater brings this nitric acid to the earth. Nitric acid reacts with some alkalies in the soil, e.g; limestone ( CaCO3 ) to form nitrates.
these nitrates serve as plant food and are responsible for their growth.

2. Formation of ozone from the atmospheric oxygen.

Electric discharge during lightining results in the formation of ozone ( O3 ) from oxygen ( O2 ). Ozone layer in the Earth's atmosphere absorbs ultraviolet radiation coming from the sun and protects the living organisms on the earth.


Hopes it helps !!!
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BEST OF LUCK ;-)

#akashmandal