Home
Class 12
PHYSICS
When air is replaced by a dielectric med...

When air is replaced by a dielectric medium of constant K, the maximum force separated by a distance

A

decreases K times

B

increases K times

C

remains unchanged

D

becomes `(1)/(K^(2))` times

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTRONS AND PHOTONS

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise All Questions|61 Videos
  • GRAVITATION

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise Gravitation|50 Videos

Similar Questions

Explore conceptually related problems

When air is replaced by a dielectric medium of constant K , the capacity of the condenser.

Two charges exert a force of 10 N on each other when separated by a distance 0.2 m in air. When they are placed in another medium of dielectric constant K = 4 , and separated by distance R. they exert same force. The distance R equats to

The capacitance of a parallel plate capacitor having air between its plates is 10 mu f . if the distance between the plates is reduced to half and the medium between plates is replaced by a medium of dielectric constant k=5 , then find the value how much increase or decrease in the capacitance of the capacitor.

A capacitor of capacitance C is charged to potential difference V and then disconnected from the battery. The air dielectric of capacitor is replaced by another dielectric of dielectric constant K. The fractional decrease in energy of the capacitor is

Assertion: If the meduim between two charges is replaced by another medium of grater dielectric constant then the electric force between them decreases. Reason: Electric dipole moment varies inversely as the dielectric constant.

When plate of a capacitor are separated by a dielectric medium of relative permitively K , instead of air, ……… becomes …….. Times.

A parallel plate capacitor having a separation between the plates d, plate area A and material with dielectric constant K has capacitance C_(0) . Now one-third of the material is replaced by another material with dielectric constant 2K, so that effectively there are two capacitors one with area 1/3A, dielectric constant 2K and another with area 2/3A and dielectric constant K. If the capacitance of this new capacitor is C then (C)/(C_(0) is

The capacity of a capacitor becomes 10 mu F when air between the plates is replaced by a dielectric slab of K = 2. What is the capacity of the condenser with air in between the plates ?

NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-ELECTROSTATICS-Electrostatics
  1. A parallel plate condenser with oil (dielectric constant 2) between th...

    Text Solution

    |

  2. In bringing an electron towards another electron, the electrostatic po...

    Text Solution

    |

  3. When air is replaced by a dielectric medium of constant K, the maximum...

    Text Solution

    |

  4. A hollow insulated conducting sphere is given a positive charge of 10 ...

    Text Solution

    |

  5. A particle of mass m and charge q is released from rest in uniform el...

    Text Solution

    |

  6. A point Q lies on the perpendicular bisector of an electrical dipole ...

    Text Solution

    |

  7. The formation of a dipole is due to two equal and dissimilar point cha...

    Text Solution

    |

  8. Intensity of an electric field (E) depends on distance r due to a dipo...

    Text Solution

    |

  9. A charge q is placed at the centre of a cube of side l what is the el...

    Text Solution

    |

  10. There is an electric field E in x-direction. If the work done on movin...

    Text Solution

    |

  11. A charge q is placed at the centre of the line joining two equal charg...

    Text Solution

    |

  12. If the potential of a capacitor having capacity of 6 muF is increased ...

    Text Solution

    |

  13. An electric dipole consisting of two opposite charges of 2xx10^(-6)C e...

    Text Solution

    |

  14. The four capacitors, each of 25 muF are connected as shown in figure. ...

    Text Solution

    |

  15. A hollow metal sphere of radius 10cm is charged such that the potentia...

    Text Solution

    |

  16. The electric field strength in air at NTP is 3 xx 10^(6)V//m. The maxi...

    Text Solution

    |

  17. Two spherical conductors A and B of radii 1mm and 2mm are separated by...

    Text Solution

    |

  18. Two connectric spheres of radii R and r have similar charges with equa...

    Text Solution

    |

  19. A pendulum bob of mass 30.7 xx 10^(-6)kg and carrying a chargee 2 xx 1...

    Text Solution

    |

  20. A 4mu F capacitor is charged to 400 volts and then its plates are join...

    Text Solution

    |