au et il your own words. .
(a) How will you protect yourself from
lightning
(b) How are charges generated?
te 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?
What are the characteristics of a static
electric charge?
4.
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a.Suspend activities for at least 30 minutes after the last clap of thunder. If no shelter is available, crouch low, with as little of your body touching the ground as possible. Lightning causes electric currents along the top of the ground that can be deadly over 100 feet away. Stay away from concrete floors or walls.
b. Charges are generated in an object when the object loses or gains some electrons or when there is displacement between the positive and negative charges of an object. Methods of generating charges are: ... The one which gains electrons gets negatively charged and the other one gets positively charged.
c.The lower end of the metal strip is joined to metal plate and burred deep into ground near the base of the of our building. if lightning strikes , it will hit the top of lightning conductor . The electrical energy passes through the metal strip and gets discharged safely into the ground through buried metal plate.
d.So, the farmer by putting an iron staff into the ground while working in the field in rainy condition, makes sure that he and his crops remains safe in case lightning occurs. ... Hence, we do not see lightning everyday during the rainy season.
e.For lightning to happen, there must be some minimum amount of accumulation to happen in the clouds. ... Hence, we do not see lightning everyday during the rainy season.
f. The characteristics of a static electric charge are as follows: Charges exist in two types i.e. positive and negative. Positive charge is generally carried by a proton and negative charge by an electron. Like charges always attract each other and unlike charges always repel each other.
Explanation:
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