Question

Statements given below are incorrect. Write the correct statements.
1. When an ebonite rod is rubbed with wool, they get oppositely charged due to conduction.
2. An uncharged electroscope can tell the nature of charge on a charged body.
3. Lightning is caused due to discharge between similarly charged clouds.
4. Lightning strikes only on high-rise buildings. 5. The electric charge leaks from the flat surfaces.​

Answer 1

Answer:

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Explanation:

1. When an ebonite rod is

rubbed with wool, they get oppositely charged due to conduction. True .

2. An uncharged electroscope

can tell the nature of charge on

a charged body.

Answer :- A charged electroscope can tell the nature of charge on a charged body.

3. Lightning is caused due to discharge between similarly charged clouds.

Answer :- Lightning is caused due to discharge between oppositely charged clouds.

4. Lightning strikes only on high-rise buildings.

Answer :- Lightning strikes generally on high-rise buildings.

5. The electric charge leaks from the flat surfaces.

Answer:- The electric charge leaks from the sharp surfaces.

Answer 2

Answer:

1 - When an ebonite rod is rubbed with wool, they get oppositely charged due to conduction and the statement is true.

2- A electroscope can be charged positively or negatively by touching the disc or the brass cap of the electroscope with a positively charged glass rod or negatively charged ebonite rod.

Only when the electroscope is charged, will the leaves collapse or diverge depending on the charge of the body for which the type of charge is to be determined.

Hence, the statement is false

3- lightning discharges require clouds with opposite charges. Hence the statement is false.

4- the statement is true. in ques no. 4

5-electric charges leak from sharp edges and not from the flat surfaces.