Home
Class 12
PHYSICS
A parallel plate condenser has a capacit...

A parallel plate condenser has a capacitance `50 muF` in air and `100 muF` when immersed in an oil. The dielectric constant `k` of the oil is

A

0.2

B

1.5

C

2.2

D

2.5

Text Solution

Verified by Experts

The correct Answer is:
C

`C_(m)=C_("air")xxk`
`therefore" "k=C_(m)/C_("air")=110/50=2.2`
Promotional Banner

Topper's Solved these Questions

  • ELECTRONS AND PHOTONS

    NIKITA PUBLICATION|Exercise MCQs|162 Videos
  • GRAVITATION

    NIKITA PUBLICATION|Exercise Multiple Choice Questions|409 Videos

Similar Questions

Explore conceptually related problems

A parallel plate condenser has a capacitance 50 muF in air and 110 muF when immersed in an oil. The dielectric constant k of the oil is

An air capacitor of 1muF is immersed in a transformer oil of dielectric constant 3. The capacitance of the oil capacitor is

A parallel plate air capacitor has a capacitance C. When it is half filled with a dielectric of dielectric constant 5, the percentage increase in the capacitance will be

A parallel plate capacitor of capacitance 100muF is connected a power supply of 200 V. A dielectric slab of dielectric constant 5 is now inserted into the gap between the plates. (a) Find the extra charge flown through the power supply and the work done by the supply. (b) Find the change in the electrostatic energy of the electric field in the capacitor.

The oil condenser has a capacity of 100 mu F .The oil has dielectric constant 2. When the oil leaks out,its new capacity is????

A parallel plate air condenser of capacity 4muF is charged to a potential of 1000 V. the energy of the condenser is

A parallel plate condenser with air as dielectric has capacity C_(0)=(in_(0)A)/d . A thin mica sheet of dielectric constant K and thickness t is introduced near the first plate and then moved with constant velocity v towards the other plate. The capacity of the condenser will be

A parallel plate condenser is immersed in an oil of dielectric constant 2 . The field between the plates is

NIKITA PUBLICATION-ELECTROSTATICS-Multiple Choice Questions
  1. If the distance between the plates of parallel plate capacitor is halv...

    Text Solution

    |

  2. In order to increase the capacity of a parallel plate condenser one sh...

    Text Solution

    |

  3. A parallel plate condenser has a capacitance 50 muF in air and 100 muF...

    Text Solution

    |

  4. The capacity of parallel plate condenser is 5muF. When a glass plate i...

    Text Solution

    |

  5. A capacitor has a capacity C, when air is present between the two plat...

    Text Solution

    |

  6. A parallel plate capacitor has a capacity C. The separation between pl...

    Text Solution

    |

  7. The capacity of condenser containing air is 4muF. What will be its cap...

    Text Solution

    |

  8. The capacity of a parallel plate condenser increases four times if the...

    Text Solution

    |

  9. A parallel plate capacitor having capacitance C farad is connected wit...

    Text Solution

    |

  10. A capacitor is charged by using a battery which is then disconnected. ...

    Text Solution

    |

  11. A parallel plate capacitor has plates with area A and separation d. A ...

    Text Solution

    |

  12. The capacitance of a capacitor between 4//3 times its original value i...

    Text Solution

    |

  13. Energy of a charged condenser is given by

    Text Solution

    |

  14. Energy of a charged condenser is directly proportional to square of

    Text Solution

    |

  15. Energy of a charged condenser is given by

    Text Solution

    |

  16. The amount of energy stored in condenser becomes nine times the initia...

    Text Solution

    |

  17. The capacity of a parallel plate air capacitor is 10muF and it is give...

    Text Solution

    |

  18. When a capacitor having capacitance 4muF and potential difference 100 ...

    Text Solution

    |

  19. Find the capacitance of a capacitor having a charge of 6xx10^(-7)C and...

    Text Solution

    |

  20. A variable condenser is permanetly connect to a 100V battery. If the c...

    Text Solution

    |