Home
Class 12
PHYSICS
A capacitor of 2 muF is charged to a pot...

A capacitor of `2 muF` is charged to a potential of 4V using a battery, and then the battery is disconnected and the changed capacior is connected to an uncjharged caspacitor of `4 muF` capacitance. When the equilibrium is established the total energy stored in the capacitors is

A

`16 muJ`

B

`(16)/(3)muJ`

C

`(32)/(3)muJ`

D

`(32)/(9)muJ`

Text Solution

Verified by Experts

The correct Answer is:
B

`V=(C_(1)V_(1)+C_(2)V_(2))/(C_(1)+C_(2))`
`U_(F)=1/2(C_(1)+C_(2))V^(2)`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A 2 muF capacitor C_(1) is first charged to a potential difference of 10 V using a battery. Then the battery is removed and the capacitor is connected to an uncharged capacitor C_(2) of 8 muF . The charge in C_(2) on equilibrium condition is _______ muC . (Round off to the Nearest Integer)

If a 4muF capacitor is charged to 1 kV, then energy stored in the capacitor is

A battery of 20V is connected to a capacitor of capacitance 10 muF . Now battery is removed and this capacitor is connected to a second uncharged capacitor. If the charge distributes equally on these two capacitors, the total energy stored in the two capacitors will be

A capacitor of capacitance 4 muF is fully charged to a potential difference of 12 V and then charging battery is disconnected. Charged capacitor is now connected across an inductor of self-inductance of 1.2 mH. The current in the circuit at a time when the potential difference across the capacitor is 6 V is

An ideal capacitor of capacitance 0.2muF is charged to a potential difference of 10V . The charging battery is than disconnected. The capacitor is then connected to an ideal inductor of self inductance 0.5mH . The current at a time when the potential difference across the capacitor is 5V is :

A capacitor of capacitance C is charged to a potential difference V_(0) . The charged battery is disconnected and the capacitor is connected to a capacitor of unknown capacitance C_(x) . The potential difference across the combination is V. The value of C_(x) should be

A capacitor C is charged to a potential V by a battery. It is then disconnected from the battery and again connected with its polarity reversed to the battery

A capacitor of capacitance 1/3muF is connected to a battery of 300volt and charged. Then the energy stored in capacitor is

A capacitor is charged by connecting a battery across its plates. It stores energy U. Now the battery is disconnected and another identical capacior is connected across it, then the energy stores by both capacitors of the system will be

A capacitor of capacitance 6 muF is charged to a potential of 150V. Its potential falls to 90V, when another uncharged capacitor is connected to it. Find the capacitance of the second capacitor and the amount of energy lost due to the connection.

CAREER POINT-UNIT TEST 7-PHYSICS
  1. In the given circuit, with steady current, the potential drop across t...

    Text Solution

    |

  2. For the circuit shown in figure the charges on three capacitors, A, B ...

    Text Solution

    |

  3. A capacitor of 2 muF is charged to a potential of 4V using a battery, ...

    Text Solution

    |

  4. Six metallic plated each with a surface area of one side A. are placed...

    Text Solution

    |

  5. In the given circuit when S(1) & S(2) are clossed, The potential of po...

    Text Solution

    |

  6. The amount of heat generated in 500 Omega resisttance, when the kye is...

    Text Solution

    |

  7. The capacity of an isolated sphere is increased n times when it is enc...

    Text Solution

    |

  8. Initially K(1) is closed, now if K(2) is also closed, find heat dissip...

    Text Solution

    |

  9. The capacitance of a parallel plate condenser is C(0) If a dielectric...

    Text Solution

    |

  10. A fully charged capacitor has a capacitance 'C'. It is discharged thro...

    Text Solution

    |

  11. Find equivalent capacitance between A & B

    Text Solution

    |

  12. The potential at point A in the circuit is - (N point is grounded. Gro...

    Text Solution

    |

  13. Equivalent dielectric constant of given arrangement is

    Text Solution

    |

  14. A parallel plate capacitor having capacitance C Farad is connected wit...

    Text Solution

    |

  15. A dielectric slab of area A and thickness d is inderted between then p...

    Text Solution

    |

  16. n identical cells, each of emf epsilon and internal resistance r, are ...

    Text Solution

    |

  17. The three light bulbs in the circuit below are identical, and the batt...

    Text Solution

    |

  18. Twelve wires each of resistance 6Omega are connected to from a cube as...

    Text Solution

    |

  19. The reading of ammeter in the adjoining diagram will be

    Text Solution

    |

  20. If a given volume of water in a 220 V heater is boiled in 5 min, then...

    Text Solution

    |