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Question
Give a reason for the following.
In an electroscope, the connecting rod and the leaves are all metals.
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Solution
Reason:
These are made of metals so that the electrons become free to move.
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RELATED QUESTIONS
Give a reason for the following
When you touch the metal disc of an electroscope with a charged glass rod the metal leaves get diverged.
The aluminium strips in an electroscope as shown in the following figure are replaced by plastic strips and a charged body is brought in contact with the metal clip. What will happen?

In an electroscope, if a negatively charged body is brought in contact with the metal dip, the strips of the electroscope diverge. If now another charged object carrying equal amount of positive charge is brought in contact with the clip, what will happen?
If the metal clip used in the electroscope is replaced by an ebonite rod and a charged body is brought in contact with it, will there be any effect on the aluminium strips? Explain.
Lighting occurs due to ______.
Assertion: Insulators do not allow a flow of current through them.
Reason: Insulators have no free charge carrier
Assertion: When both the strips of the electroscope are charged with a similar charge, they repel each other and become wide open.
Reason: Like charges always repel each other.
What do you mean by electrical Earthing?
Write a note on –
Electrical discharge.
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
