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Five balls marked by numbers from 1 to 5...

Five balls marked by numbers from 1 to 5 are hung by different threads. It is seen that the pairs of the balls (1,2), (2, 4), (4,1) attract each other. Again the pairs (2,3) and (4,5) repel each other. So the ball marked by 1 is

A

positively charged

B

negatively charged

C

uncharged

D

made by a metal

Text Solution

Verified by Experts

The correct Answer is:
C
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CHHAYA PUBLICATION-ELEMENTARY PHENOMENA OF ELECTROSTATICS -EXERCISE
  1. A positively charged glass rod attracts a light hanging body and there...

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  2. Five balls marked by numbers from 1 to 5 are hung by different threads...

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  3. The charges of the clouds responsible for lightning are duced due to

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  4. 10^6 electrons are given to a pith ball. The charge of the ball will b...

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  5. A glass rod rubbed with silk becomes positively charged because

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  6. Two identical metallic spheres of the same mass are taken. Positive Q ...

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  7. If a body is charged by rubbing, its weight

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  8. If the charge of an electron be 1.6 xx 10^(-19) C, which one of the fo...

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  9. Electrostatic induction can be brought about

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  10. Two charged spheres attract each other with a force. If they are touch...

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  11. Charge of a conductor resides on the outer surface of it. This stateme...

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  12. With respect to a hollow sphere, a solid metallic sphere of the same r...

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  13. The unit of surface density of charge in SI is

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  14. The diameter of a hollow conducting sphere is 2 cm. If the sphere has ...

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  15. If a glass rod be rubbed with silk, what kind of charge is produced on...

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  16. If an ebonite rod be rubbed with flannel, what kind of charge is produ...

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  17. A, B and C are three charged bodies. If A and B repel each other and A...

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  18. Two point charges q1 and q2 are such that q1q2 lt 0. What is the natu...

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  19. What is the number of electrons in 1C charge?

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  20. is the surmer test of electrification.

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