Home
Class 12
PHYSICS
A parallel air capacitance 245muF has a ...

A parallel air capacitance `245muF` has a charge of magnitude `0.48muC` on each plate. The plates are `0.328 mm` apart.
(a) What is the potential difference between the plates?
(b) What is the area of each plate?
(c) What is the surface charge density on each plate?

Text Solution

Verified by Experts

`a. V=q/C`
b. `C=(epsilon_0A)/d`
`:. A=(Cd)/epsilon_0`
`c. sigma=q/A`
Promotional Banner

Topper's Solved these Questions

  • CAPACITORS

    DC PANDEY|Exercise OBJECTIVE_TYPE|1 Videos

  • CAPACITORS

    DC PANDEY|Exercise OBJECTIVE_TYPE|1 Videos

  • ATOMS

    DC PANDEY|Exercise MEDICAL ENTRANCES GALLERY|42 Videos

  • COMMUNICATION SYSTEM

    DC PANDEY|Exercise Subjective|11 Videos

Similar Questions

Explore conceptually related problems

One plate of a capacitor of capacitance 2muF has total charge +10muC and its other plate has total charge +40mUC . The potential difference between the plates is (in Volt).

If Q is the charge on the pates of a capacitor of capacitances C,V the potential difference between the plates, s the area of each plate and d the distance between the plates, the force of attraction between the plates is-

A parallel plate capacitor of 300 muF is charged to 200 V . If the distance between its plate is halved, what will be the potential difference between the plates and what will be the change in stored energy ?

In an isolated parallel plate capacitor of capacitance C , the plates have charge Q_(1) and Q_(2) . The potential difference between the plates is

The plates of a parallel-plate capacior are given equal positive charges .What will be the potential difference between the plates ? What will be the charges on the facing surfaces and on the outer surfaces ?

In a parallel plate capacitor of capacitor 1muF two plates are given charges 2muC and 4muC the potential difference between the plates of the capacitor is

A capacitor has a capacitance of 7.28 muF . What amount of charge must be placed on each of its plates to make the potential difference between its plates equAl to 25.0 V ?

Two parallel plates, separated by 2 mm of air, have a capacitance of 3xx10^(-14)muF and are charged to a potential of 200 V. then without touching the plates, they are moved apart till the separation is 6 mm. (i) what is the potential differene between the plates ? (ii) what is the change in energy?

DC PANDEY-CAPACITORS-Exercise
  1. Two conductors of capacitance 1muF and 2muF are charged to +10V and -2...

    Text Solution

    |

  2. A capacitor has a capacitance of 7.28 muF. What amount of charge must ...

    Text Solution

    |

  3. A parallel air capacitance 245muF has a charge of magnitude 0.48muC on...

    Text Solution

    |

  4. Two parallel plates have equal and opposite charges. When the space be...

    Text Solution

    |

  5. Find charges on different capacitors.

    Text Solution

    |

  6. Find the charges on different capacitors.

    Text Solution

    |

  7. Assertion : From the relation C = q/V We can say that, if more charge ...

    Text Solution

    |

  8. Assertion : A parallel plate capacitor is first charged and then dista...

    Text Solution

    |

  9. Assertion : When an uncharged capacitor is charged by a battery only 5...

    Text Solution

    |

  10. Assertion: Discharging graphs of two C.R. circuits having the same val...

    Text Solution

    |

  11. Assertion : In series combination, charges on two capacitors are alway...

    Text Solution

    |

  12. Assertion : Two capacitors are charged from the same battery nd then c...

    Text Solution

    |

  13. Assertion: In the circuit shown in figure no charge will stored in the...

    Text Solution

    |

  14. Assertion: In the circuit in figure, time constant of charging of capa...

    Text Solution

    |

  15. Assertion: Two capacitors are connected in series with a battery. Ene...

    Text Solution

    |

  16. Assertion: In the circuit shown in figure with a dielectric slab is in...

    Text Solution

    |

  17. The separation between the plates of a charged parallel-plate capacito...

    Text Solution

    |

  18. If the plates of a capacitor are joined together by as conducting wire...

    Text Solution

    |

  19. Two metal spheres of radii a and b are connected by a thin wire. Their...

    Text Solution

    |

  20. n identical capacitors are connected in parallel to a potential differ...

    Text Solution

    |