Home
Class 12
PHYSICS
Two capacitors are in parallel and when ...

Two capacitors are in parallel and when connected to a source of 3000 V, store 250 J of energy. When they are connected in series to the same source, the energy stored decreases by 190 J for the same potential. Their capacities are in the ratio

A

`3:2 `

B

`2 :7`

C

`4 :3`

D

`3:5`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (CUTTENT ELECTRICITY )|108 Videos

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (MOVING CHANGES & MEGNETISM)|95 Videos

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (MAGNETISM AND MATTER )|52 Videos

  • ALTERNATING CURRENT

    AAKASH SERIES|Exercise EXERCISE - III|24 Videos

  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise LAW OF MOTION|128 Videos

Similar Questions

Explore conceptually related problems

Two bulbs when connected in parallel to a source take 60 W each, the power consumed, when they are connected in series with the same source is

Two bulbs when connected in parallel to a source take 100 W each. The total power consumed when they are connected in series with the same source is

If there are n capacitors in parallel connected to V volt source, then the energy stored is equal to

Two bulbs consume same energy when operated at 200 V and 300 V , respectively . When these bulbs are connected in series across a dc source of 500 V , then

Two capacitors of 10 pF and 20 pF are connected to 200 V and 100 V sources, respectively. If they are connected by the wire, then what is the common potential of the capacitors?

Two bulbs consume the same power when operated at 200 V and 300 V respectively. When these bulbs are connected in series across a DC source of 400 V, then the ratio of power consumed across them is

A capacitor of capacitance 6 mu F is connected with an emf sourface 3 V. Electrostaci energy stored in the capacitor is

Assertion: Two capacitors are connected in series with a battery. Energy stored across them is in inverse ratio of their capacity. Reason: U=1/2qV or UpropqV

Two condensers are in parallel and the energy of the combination is 0.1 J , when the difference. of potential between terminals is 2 V . With the same two condensers in series, the energy 1.6 xx 10^-2 J for the same difference of potential across the series combination. What are the capacities?

A capacitor of capacitance C_(1) is charged to a potential V_(1) while another capacitor of capacitance C_(2) is charged to a potential difference V_(2) . The capacitors are now disconnected from their respective charging batteries and connected in parallel to each other . (a) Find the total energy stored in the two capacitors before they are connected. (b) Find the total energy stored in the parallel combination of the two capacitors. (c ) Explain the reason for the difference of energy in parallel combination in comparison to the total energy before they are connected.

AAKASH SERIES-APPENDICES ( REVISION EXERCISE )-REVISION EXERCISE (ELECTRIC POTENTIAL & CAPACITANCE )
  1. Two parallel plates capacitors A and B having capacitance of 1 muF and...

    Text Solution

    |

  2. A condenser of capacity 2mF charges to a potential 200V is connected i...

    Text Solution

    |

  3. Two capacitors are in parallel and when connected to a source of 3000 ...

    Text Solution

    |

  4. A parallel plate capacitor of capacity 100mu F is charged by a battery...

    Text Solution

    |

  5. A parallel - plate capacitor of plate area A and plate separation d is...

    Text Solution

    |

  6. The capacity of a parallel plate condenser with air as dielectric is 2...

    Text Solution

    |

  7. A parallel plate air capacitor of capacitance C is connected to a cell...

    Text Solution

    |

  8. A parallel plate capacitor has plate area A and separation d. It is ch...

    Text Solution

    |

  9. Two capacitors of capacity 4 mu F and 6 mu F are connected in series ...

    Text Solution

    |

  10. A parallel plate capacitor of capacity C(0) is charged to a potential ...

    Text Solution

    |

  11. The equivalent resistance between points a and f of the network shown ...

    Text Solution

    |

  12. The energy stored in 5 mu F and 8 mu F capacitors are

    Text Solution

    |

  13. A fully charged capacitor has a capacitance C. It is discharged throug...

    Text Solution

    |

  14. A series combination of n(1) capacitors, each of value C(1) is charged...

    Text Solution

    |

  15. A spherical drop of capacitance 1 muF is broken into eight drop of equ...

    Text Solution

    |

  16. When a number of liquid drops each of surface charge density sigma an...

    Text Solution

    |

  17. n identical condensers are joined in parallel and are charged to poten...

    Text Solution

    |

  18. A condenser of capacity C(1) is charged to a potential V(0) the elect...

    Text Solution

    |

  19. A parallel plate capacitor is filled with a dielectric of dielectric c...

    Text Solution

    |

  20. A parallel -plate capacitor with the plate area 100cm^2 and the separa...

    Text Solution

    |