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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.
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.
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?
Before using an electroscope, it should be ______.
The gold-leaf electroscope was developed by Abraham Bennet.
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?
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
