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Earthing

What happens ...

Question

What happens when earthing is not done for a lightning conductor?

A

The lightning charges will not be attracted to the conductor

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B

The lightning will find a way to neutralize itself

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C

It will transfer the charges to the air surrounding the conductor.

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D

Lightning will not occur

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Solution

The correct option is B
The lightning will find a way to neutralize itself

If a lightning conductor is not grounded, the lightning charge will not have a place to go to the ground. Instead, it will invariably find a path to discharge itself which will be through the body of the structure and damage it. Hence we have a need for proper earthing.

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Similar questions

Q. Lightning conductors are used to protect building from lightning strikes. Which of the following statements is / are true about lightning conductors?
1. Lightning conductors create an electric field at its top so that lightning strikes it preferentially
2. Lightning conductors reduce the effect of the strike by uniformly distributing the charge (current) over the surface of the building
3. Lightning conductors take all charge (current) to deep down in the earth
4. Lightning conductors must be installed at a place taller than the building
Select the correct answer using the code given below:

Q. What happens when the lower end of the lightning conductor is not properly buried in the ground?

Q. If the materials used for constructing a building were good conductors, do you think lightning will strike the building? Will the lightning conductor be still required to be installed in the building?

Q. Lightning occurs due to very high accumulation of charges in the cloud, despite air being a bad conductor of electricity.

Q. Answer in your own words.

(a) How will you protect yourself from lightning?
(b) How are charges generated?
(c) In the lightning conductor, what provision is made for spreading the electricity into the ground?
(d) Why do farmers stick an iron staff into the ground while working in the field in rainy conditions?
(e) Why is lightning not seen everyday during the rainy season?

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