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प्रश्न
Give a reason for the following.
In an electroscope, the connecting rod and the leaves are all metals.
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उत्तर
Reason:
These are made of metals so that the electrons become free to move.
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संबंधित प्रश्न
The body which has lost electrons becomes ________.
Electroscope is a device used to charge a body by induction.
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?
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.
