Home
Class 12
PHYSICS
27 drops of same size and having equal a...

27 drops of same size and having equal and similar charge coalesce to form a bigger drop. Calculate the ratio of capacities of bigger drop to the smaller drop.

A

27

B

18

C

9

D

3

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    PATHFINDER|Exercise QUESTION BANK|50 Videos
  • MAGNETIC EFFECT OF CURRENT AND ELECTROMAGNETISM-I,II AND III

    PATHFINDER|Exercise QUESTION BANK|213 Videos

Similar Questions

Explore conceptually related problems

n small drops of the same size are initially at the same potential. They coalesce to form a big drop. What is the ratio of the capacitance of this big drop to that of any of this small drops?

64 tiny drops of water having same radius and same charge are combined to form one large drop. The ratio of potential of the large drop to the small drop is

64 tiny drops of water having same radius and same charge are combioned of formone large drop. The ratio of petential of the large drop to the small drop is

27 drops of water, each of radius 3 mm and having equal charge are combined to form a large drop. Find the ratio of the surface density of charge on the large drop to that on each small drop.

Two small drops of mercury, each of radius R coalesce to form a single large drop. Calculate the ratio of the total surface energies before and after the change.

n small drops of the same size of the same size are charged to V volt each. They coalesce to form a big drop. The potential of the big drop will be

Each of 27 identical mercury drops is charged to a potential of 10V. If the drops coalesce to form a big drop, what will be its potential? Calculate the ratio of the energy of the big drop to that of a small drop.

Two drops of mercury, each having a radius R, coalesce to from a large drop. Determine the ratio of their surface energies before and after the change. Surface tension of mercury = T.

Two equal drops of water with the same and similar charge coalesce to form a large single drop. Show how the surface charge density, capacity, potential and energy change.

64 small water drops each of capacitance C and charge q coalesce to form a larger spherical drop. The charge and capacitance of the larger drop is

PATHFINDER-ELECTROSTATICS-I, II AND III-QUESTION BANK
  1. The electrostatic potential inside a charged spherical ball is given b...

    Text Solution

    |

  2. By what factor the capacity of a metal sphere increases if its volume ...

    Text Solution

    |

  3. 27 drops of same size and having equal and similar charge coalesce to ...

    Text Solution

    |

  4. A parallel plate capacitor is filled with a dielectric having variable...

    Text Solution

    |

  5. A parallel plate capacitor has a capacitance of 50muF in air and 110m...

    Text Solution

    |

  6. Two parallel plates have equal and opposite charges when the space bet...

    Text Solution

    |

  7. Two metallic plates are kept parallel to one another and charges are.g...

    Text Solution

    |

  8. A capacitor of capacitance C carrying charge Q is connected to a sourc...

    Text Solution

    |

  9. The dimension of capacitance is

    Text Solution

    |

  10. Two metal spheres of radii a and b are connected by a thin wire. Their...

    Text Solution

    |

  11. Two insulated charged spheres of radii 20 cm and 25 cm respectively an...

    Text Solution

    |

  12. Two spheres of radii R1 and R2 joined by a fine wire are raised to ...

    Text Solution

    |

  13. Two capacitors of capacities C1 and C2 are charged to 120 V and 200 ...

    Text Solution

    |

  14. A dielectric slab is inserted between the plates of an isolated capaci...

    Text Solution

    |

  15. Two capacitors each having capacitance C and break down voltage V are ...

    Text Solution

    |

  16. If the capacitors in the Q.2 are joined in parallel, the capacitance a...

    Text Solution

    |

  17. A dielectric slab is inserted between the plates of a capacitor. The c...

    Text Solution

    |

  18. A parallel plate capacitor with air as the dielectric has capacitance ...

    Text Solution

    |

  19. Two metal plates having charges Q,-Q face each other at some separati...

    Text Solution

    |

  20. The particle ‘P’ shown in figure has a mass of 10 mg and a charge of ...

    Text Solution

    |