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प्रश्न
An electroscope has been charged by induction with the help of charged glass rod. The charge on the electroscope is
विकल्प
negative
positive
both positive and negative
None of the above
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उत्तर
Positive
APPEARS IN
संबंधित प्रश्न
The body which has lost electrons becomes ________.
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.
Give a reason for the following.
In an electroscope, the connecting rod and the leaves are all metals.
What is electroscope? Explain how it works.
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?
The strips of an electroscope diverge when a charged body is brought in contact with the metal clip. Now the clip is touched gently by our hand. What will happen to the strips? Explain.
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.
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.
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
