Home
Class 12
PHYSICS
Assertion : A charged capacitor is disco...

Assertion : A charged capacitor is disconnected from a battery. Now, if its plate are separated further, the potential energy will fall.
Reason : Energy stored in a capacitor is equal to the work done in charging it.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
D
Q = constant.
`U=Q^2/(2C) =1/2 (Q^2d)/(Aepsilon_0) , U prop d`
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    ERRORLESS|Exercise PAST YEARS QUESTIONS|56 Videos

  • ELECTRONICS

    ERRORLESS|Exercise Assertion & Reason|26 Videos

  • MAGNETIC EFFECTS OF CURRENT

    ERRORLESS|Exercise ASSERTION & REASON |18 Videos

Similar Questions

Explore conceptually related problems

In a charged capacitor, the energy is stored in

What fraction of the energy drawn from the charging battery is stored in as capacitor

An uncharged capacitor is connected in series with a resistor and a battery. The charging of the capacitor starts at t=0. The rate at which energy stored in the capacitor:-

Assertion: When an uncharged capacitor is connected across a battery, half the work done by the battery is stored as electric potential energy inside the capacitor and remaining half is dissipated in the form of heat. Reason: When an uncharged capacitor is connected across the battery then potential difference between the plates of capacitor increases from zero to the value of EMF of battery but battery supplies charge at the constant potential difference.

Assertion : When an uncharged capacitor is charged by a battery only 50% of the energy supplied is stored in the capacitor. Reason : Rest 50% is lost.

Parallel Plate Capacitor |Energy Stored In A Charged Capacitor

ERRORLESS-ELECTROSTATICS-ASSERTION & REASON
  1. Assertion : A parallel plate capacitor is connected across battery thr...

    Text Solution

    |

  2. Assertion : Electric lines of force cross each other. Reason: Electr...

    Text Solution

    |

  3. Assertion:- If a proton and an electron are placed in the same uniform...

    Text Solution

    |

  4. Assertion : Shrinkage of the protoplast of a cell occurs under the inf...

    Text Solution

    |

  5. Assertion. When charges are shared between any two bodies, no charge i...

    Text Solution

    |

  6. Assertion : An electron and positron can annihilate each other creatin...

    Text Solution

    |

  7. Assertion: Surface of asymmetrical conductor can be treated as equipot...

    Text Solution

    |

  8. Assertion: The lightening conductor at the top of high building has sh...

    Text Solution

    |

  9. Assertion : A charged capacitor is disconnected from a battery. Now, i...

    Text Solution

    |

  10. Assertion: The force with which one plate of a parallel plate capacito...

    Text Solution

    |

  11. Assertion Mass of ion is slightly differed from its element. Reason ...

    Text Solution

    |

  12. Assertion : Displacement current goes through the gap between the plat...

    Text Solution

    |

  13. Assertion. If a point charge q is placed in front of an infinite grou...

    Text Solution

    |

  14. Assertion (A): If two spherical conductors of different radii have the...

    Text Solution

    |

  15. Statement -1 : A bird perches on a high power line and nothing happens...

    Text Solution

    |

  16. Assertion: On going away from a point charge or a small electric dipol...

    Text Solution

    |

  17. Assertion: The tyres of aircraft's are slightly conducting. Reason: ...

    Text Solution

    |

  18. Assertion: Conductors having equal positive charge and volume, must al...

    Text Solution

    |

  19. Assertion : At a point in space, the electric field points towards nor...

    Text Solution

    |

  20. Assertion: A point charge is brought in an electric field. The field ...

    Text Solution

    |