Home
Class 12
PHYSICS
An air filled parallel plate condenser h...

An air filled parallel plate condenser has a capacity of 2 pF. The separation of the plates is doubled and the interspace between the plates is filled with wax. If the capacity is increased to 6 pF, the dielectric constant of wax is

A

2

B

3

C

4

D

6

Text Solution

Verified by Experts

The correct Answer is:
d
where K is dielectric constant of wax. From equations (i) and (ii)
`(K)/(2)2 pF = 6 pF implies K = 6`
Promotional Banner

Topper's Solved these Questions

  • KARNATAKA CET 2003

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

  • KARNATAKA CET 2006

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

Similar Questions

Explore conceptually related problems

A parallel plate capacitor with air between the plates has capacitance C. What will be the capacitance if (a) the distance between the plates is doubled? (b) the space between the plates is filled with a substance of dielectric constant 5?

A parallel plate capacitor with only air between the plates has a capacitance of 8pF . What will be the capacitance if the distance between the plates is reduced by half and the space between them is filled with a substance of dielectric constant 6?

In a parallel plate capacitor with air between the plates, each plate has an area of 6xx10^(-3)m^2 and the distance between the plates is 3 m. Calculate the capacitance of the capacitor. If this capacitor is connected to a 100V supply. What is the charge on the each plate of the capacitor?

Capacitance of a parallel plate capacitor becomes 4//3 times its original value if a dielectric slab of thickness t=d/2 is inserted between the plates [d is the separation between the plates]. The dielectric constant of the slab is

KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2005-PHYSICS
  1. Electron of mass m and charge q is travelling with a speed v along a c...

    Text Solution

    |

  2. From figure describing photoelectric effect we may infer correctly tha...

    Text Solution

    |

  3. Two coherent light beams of intensity I and 41 are superposed. The max...

    Text Solution

    |

  4. The electron in a hydrogen atom makes a transition from n = n(1) to n ...

    Text Solution

    |

  5. If the forward voltage in a diode in increased, the width of the deple...

    Text Solution

    |

  6. Two nucleons are at a separation of one Fermi. Protons have a charge o...

    Text Solution

    |

  7. The electric flux Gaussian for surface A that enclose the charged part...

    Text Solution

    |

  8. Four metal conductors having different shapes 1. a sphere 2. cylindric...

    Text Solution

    |

  9. The potential to which a conductor is raised, depends on

    Text Solution

    |

  10. The work done in carrying a charge q once round a circle of radius r w...

    Text Solution

    |

  11. An air filled parallel plate condenser has a capacity of 2 pF. The sep...

    Text Solution

    |

  12. The energy that should be added to an electron to reduce its de Brogli...

    Text Solution

    |

  13. Mean life of a radioactive sample is 100 seconds Then its half-life (i...

    Text Solution

    |

  14. Consider two nuclei of the same radioactive nuclide. One of the nuclei...

    Text Solution

    |

  15. Bohr's atom model assumes

    Text Solution

    |

  16. Identify the property of which is not characteristic for a semiconduct...

    Text Solution

    |

  17. Identify the wrong statement in the following Coulomb's law correctly ...

    Text Solution

    |

  18. A single slit of width a is illuminated by violet light of wavelength ...

    Text Solution

    |

  19. At Kavalur in India, the astronomers using a telescope whose objective...

    Text Solution

    |

  20. When unpolarised light beam is incident from air onto glass (n = 1.5) ...

    Text Solution

    |