Home
Class 12
PHYSICS
When a sheet of dielectric is inserted b...

When a sheet of dielectric is inserted between the two plates of a capacitor, its capacitance

A

Decreases

B

May increase or decrease

C

Increases

D

Remains the same

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MODEL TEST PAPER - 1

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

  • MODEL TEST PAPER - 8

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

Similar Questions

Explore conceptually related problems

The plates of a parallel plate capacitor have an area of 100 cm^(2) each and are separated by 3mm. The capacitor is charged by connecting it to a 400 V supply. (a) Calculate the electrostatic energy stored in the capacitor. (b) If a dielectric of dielectric constant 2.5 is introduced between the plates of the capacitor then find the electrostatic energy stored and also change in the energy stored.

A parallel plate capacitor is charged by a battery. After sometime the battery is disconnected and a dielectric slab with its thickness equal to the plate separation is inserted between the plates. How will (i) the capacitance of the capacitor, (ii) potential difference between the plates and (iii) the energy stored in the capacitor be affected ? Justify your answer in each case.

Explain what would happen if in the capacitor given in Exercise, a 3 mm thick mica sheet (of dielectric constant = 6) were inserted between the plates, (a) while the voltage supply remained connected. (b) after the supply was disconnected.

KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER - 7-PHYSICS
  1. A moving coil galvanometer is converted intoan meterby connecting

    Text Solution

    |

  2. The plane of the coil of a T.G. is placed perpendicular to the magneti...

    Text Solution

    |

  3. When a sheet of dielectric is inserted between the two plates of a cap...

    Text Solution

    |

  4. A uniform wire of resistance R is stretched uniformly so that its leng...

    Text Solution

    |

  5. Surface density of change is maximum at the point where

    Text Solution

    |

  6. The vertical plane dip circle is perpendicular to the magnetic meridia...

    Text Solution

    |

  7. When a bar megnet is cut into two equal halves, the pole strength of e...

    Text Solution

    |

  8. if ip is the polarising angle and mu is the refractive index of the me...

    Text Solution

    |

  9. If the distance between the screen and the light source is reduced to ...

    Text Solution

    |

  10. RI for green light is 1.5. The deviation produced by a prism of angle ...

    Text Solution

    |

  11. The R.I.of diamond is 2.4 andthat of glass is 1.5. Then R.I. of galss ...

    Text Solution

    |

  12. The focal lengths of a lens for red,violet and green rays are Fr, Fv a...

    Text Solution

    |

  13. Snell's law of refraction does not hold good when the angle of inciden...

    Text Solution

    |

  14. The energy equivalent of 1 atomic mass unit is

    Text Solution

    |

  15. A candle flame gives

    Text Solution

    |

  16. The kinetic energy of the photoelectrons depends upon:

    Text Solution

    |

  17. The insertion of a new metal into a thermocouple

    Text Solution

    |

  18. A current which varies periodically with time and reverse its directi...

    Text Solution

    |

  19. Rsistance of a conductor depends on its

    Text Solution

    |

  20. The basic insutument employed to detect current is

    Text Solution

    |