Home
Class 12
PHYSICS
A parallel plate air capacitor has capac...

A parallel plate air capacitor has capacity 'C' distance of separation between plates is ‘d’ and potential difference 'V' is applied between the plates. Force of attraction between the plates of the parallel plate air capacitor is

A

`(CV)/2d`

B

`(CV^2)/d`

C

`(C^2V^2)/(2d^2)`

D

`(CV^2)/(2d)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    PATHFINDER|Exercise QUESTION BANK|50 Videos
  • MAGNETIC EFFECT OF CURRENT AND ELECTROMAGNETISM-I,II AND III

    PATHFINDER|Exercise QUESTION BANK|213 Videos

Similar Questions

Explore conceptually related problems

Find the capacitance of a parallel plate capacitor.

What is an equipotential between the plates of a parallel plate capacitor.

The capacitance of a parallel plate capacitor depends on

A parallel plate air capacitor has a capacitance C and the distance between the plates is d.A metallic plate of thickness d/3 is introduced between the plates of the capacitor. The new capacitance will be—

What is the function of second plate in parallel - plate capacitor?

A parallel plate capacitor of plate area A and plate separation d is charged to a potential difference V and then the battery is disconnected. A slab of dielectric constant k is then inserted between the plates of the capacitor so as to fill the space between the plates. If Q, E and W denote respectively the charge on each plate, the electric field between the plates and the work done in the process of inserting the slab, then

Two parallel plate capacitors of capacity C and 2C are connected in parallel and charged to a potential difference V. The battery is then disconnected and the space between the plates of the capacitor C is completely filled with a material of dielectic constant K. What is the final potential difference across the capacitors?

A parallel plate air capacitor has a capacitance of 2pF. Now, the separation between the plates is doubled, and the space is filled with wax. If the capacitance rises to 6pF, what is the dielectric constant of wax?

Two parallel plate capacitors of capacitances C and 2C are connected in parallel and charged to a potential difference V. The battery is then disconnected and the region between the plates of the capacitor C is completely filled with a material of dielectric constant k. What is the potential difference across the capacitors now?

A dielectric slab is inserted between the plates of an isolated capacitor. The force between the plates will

PATHFINDER-ELECTROSTATICS-I, II AND III-QUESTION BANK
  1. Two charges +q and -q are placed at a distance ‘a’ in a uniform electr...

    Text Solution

    |

  2. If potential (in volts) in a region is expressed as V(x, y, z) = 6 xy-...

    Text Solution

    |

  3. A parallel plate air capacitor has capacity 'C' distance of separation...

    Text Solution

    |

  4. Consider two concentric spherical metal shells of radii r1 and r2(r2gt...

    Text Solution

    |

  5. Assume that an electric field oversettoE=30x^2overset^i exists in spac...

    Text Solution

    |

  6. A conducting sphere of radius R is given a charge Q. The electric pote...

    Text Solution

    |

  7. In a region, the potential is represented by V(x, y, z) =6x - 8xy-8y +...

    Text Solution

    |

  8. Two capacitors of capacities C1 and C2 are charged to 120 V and 200 ...

    Text Solution

    |

  9. Two charges, each equal to q are kept at x = - a and x = a on the X-ax...

    Text Solution

    |

  10. A charge Q is uniformly distributed over a long rod AB of length L as ...

    Text Solution

    |

  11. A. B and C are three points in a uniform electric field. The electric ...

    Text Solution

    |

  12. Two pith balls carrying equal charges are suspended from a common poin...

    Text Solution

    |

  13. In a uniformly charged non-conducting sphere of total charge Q and rad...

    Text Solution

    |

  14. This question has Statement -1 and Statement 2. Of the four choices gi...

    Text Solution

    |

  15. An electric dipole of moment ‘p’ is placed in an electric field of int...

    Text Solution

    |

  16. Four point charges -Q, -q, 2q and 2Q are placed, one at each comer of ...

    Text Solution

    |

  17. What is the flux through a cube of side 'a' if a point charge of q is ...

    Text Solution

    |

  18. A parallel plate capacitor has a uniform electric field E(V/m) in the ...

    Text Solution

    |

  19. Two metallic spheres of radii 1cm and 3 cm are given charges of -1xx10...

    Text Solution

    |

  20. In air the value of the total electric flux emitted from unit positive...

    Text Solution

    |