Home
Class 12
PHYSICS
A capacitor when filled with a dielectri...

A capacitor when filled with a dielectric `K = 3` has charge `Q_(0)`, voltage `V_(0)` and filed `E_(0)`. If the dielectric is replaced with another one having `K = 9` the new values of charge, voltage and field will be respectively

A

`3 Q_0, 3V_0, 3E_0`

B

`Q_0, 3V_0, 3E_0`

C

`Q_(0), (V_(0))/(3), 3E_(0)`

D

`Q_(0), (V_(0))/(3), (E_(0))/(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-4 (LEVEL-II)|13 Videos
  • ELECTRONICS - SEMI CONDUCTOR

    MOTION|Exercise EXERCISE - 3|29 Videos

Similar Questions

Explore conceptually related problems

A parallel plate capacitor filled with a material of dielectric constant K is charged to a certain voltage and is isolated. The dielectric material is removed. Then (a) The capacitance decreases by a factor K (b) The electric field reduces by a factor K (c ) The voltage across the capacitor increases by a factor K (d) The charge strored in the capacitor increases by a factor K

A parallel plate capacitor filled with a material of dielectric constant K is charged to a certain voltage and is isolated. The dielectric material is removed. Then (a) The capacitance decreases by a factor K (b) The electric field reduces by a factor K ( c) The voltage across the capacitor increases by a factor K (d) The charge stored in the capacitor increases by a factor K .

A parallel plate capacitor with a dielectric slab with dielectric constant k= 3 filling the space between the plates is charged to potential V and isolated. Then the dielectric slab is drawn out and another dielectric slab of equal thickness but dielectric constant k'= 2 is introduced between the plates. The ratio of the energy stored in the capacitor later to that initially is:

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

A parallel plate capacitor has a dielectric slab of dielectric constant K between its plates that covers 1//3 of the area of its plates, as shown in the figure. The total capacitance of the capacitor is C while that of the portion with dielectric in between is C_1 . When the capacitor is charged, the plate area covered by the dielectric gets charge Q_1 and the rest of the area gets charge Q_2 . The electric field in the dielectric is E_1 and that in the other portion is E_2 . Choose the correct option/options, ignoring edge effects.

The space between parallel plate capacitors is filled with four dielectrics of equal dimensions but of dielectric constants K_(1), K_(2), K_(3)andK_(4) respectively. If K is the dielectric constant of a single dielectric that must be filled between capacitor plates to have the same capacitance between A and B. Then we must have

A parallel- plate capacitor, fileld with a dielectric of dielectric consatnt k , is charged to a potential V_(0) . It is now disconnected from the cell and the slab is removed. If it now discharges, with time constant tau , through a resistance then find time after which the potential difference across it will be V_(0) ?

parallel plate capacitor is filled by a dielectric whose dielectric constant varies with the applies voltage (V) as K = 2V. A similar capacitor with no dielectric is charged to V_(0)=78 volt.It is then connected to the uncharged capacitor with the dielectric.Find the final voltage on the capacitors

MOTION-ELECTROMAGNETISM-Exercise
  1. Two charged metal spheres of radii R and 2R are temporarily placed in...

    Text Solution

    |

  2. Two parallel plate air filled capacitors each of capacitance C, are jo...

    Text Solution

    |

  3. A capacitor when filled with a dielectric K = 3 has charge Q(0), volta...

    Text Solution

    |

  4. Four condenser are joined as shown in the adjoining figure. The capac...

    Text Solution

    |

  5. In a parallel plate capacitor, the separation between the plates is 3m...

    Text Solution

    |

  6. Four metallic plates each with a surface area A of one side and placed...

    Text Solution

    |

  7. Two identical parallel plate air capacitors are connected in series to...

    Text Solution

    |

  8. A number of capacitors each of capacitance 1 muF and each one of whic...

    Text Solution

    |

  9. In the given circuit C1 = C, C2 = 2C, C3 = 3C. If charge at the capaci...

    Text Solution

    |

  10. A capacitor of 2 muF is charged to its maximum emf of 2V and is discha...

    Text Solution

    |

  11. A battery charges a parallel plate capacitor of thickness (d) so that ...

    Text Solution

    |

  12. Two spheres of radii R1 and R2 have equal charge are joint together w...

    Text Solution

    |

  13. Calculate the reading of voltmeter between X and Y then (V(x)-V(y)) is...

    Text Solution

    |

  14. A sheet of aluminium foil of negligible thickness is placed between th...

    Text Solution

    |

  15. In above problem if foil is connected to any one plate of capacitor by...

    Text Solution

    |

  16. A circuit is shown in the figure below. Find out the charge of the con...

    Text Solution

    |

  17. Three capacitors A , B and C are connected to a battery of 25volt as s...

    Text Solution

    |

  18. Four equal capacitors , each with a capacitance (C) are connected to a...

    Text Solution

    |

  19. In the circuit shown here C(1) = 6muF, C2 = 3muF and battery B = 20V. ...

    Text Solution

    |

  20. A capacitor of capacity C(1) is charged to the potential of V(0). On d...

    Text Solution

    |