Home
Class 12
PHYSICS
Select correct statements (a) charge c...

Select correct statements
(a) charge cannot be isolated
(b) Repulsion is the sure test to know the presence of charge
( c) Waxed paper is dielectric in paper capacitor
(d) Variable capacitor is used in tuning circuits in ratio.

A

`a,b` only

B

`a,c` only

C

`a,b,c` only

D

`b,c,d` only

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • CAPACITANCE

    NARAYNA|Exercise Assertion & Reasoning|16 Videos

  • CAPACITANCE

    NARAYNA|Exercise Level-I (C.W)|16 Videos

  • CAPACITANCE

    NARAYNA|Exercise Previous IIT-JEE|16 Videos

  • ATOMS

    NARAYNA|Exercise EXERCISE -4|47 Videos

  • COMMUNICATION SYSTEM

    NARAYNA|Exercise Level-II(H.W)|25 Videos

Similar Questions

Explore conceptually related problems

consider the following statement A and B , and select the correct choice A: Repulsion is a sure test of magnetism. (B) : Magnetic induction precedes attration.

A parallel plate capacitor has a dielectric slab of dielectric constant K between its plates that covers 1//3 of the area of its plates, as shown in the figure. The total capacitance of the capacitor is C while that of the portion with dielectric in between is C_1 . When the capacitor is charged, the plate area covered by the dielectric gets charge Q_1 and the rest of the area gets charge Q_2 . The electric field in the dielectric is E_1 and that in the other portion is E_2 . Choose the correct option/options, ignoring edge effects.

The capacitance of a capacitor depends on (A) Charge on the plates (B) the size of the plates (C) the shape of the plates (D) the separation between the plates

Three capacitors A , B and C are connected to a battery of 25volt as shown in the figure. The ratio of charges on capacitors A

A parallel plate capacitor has plate A and separation d between the plates. The capacitor is connected to a battery of emf V . (a) find the charge on the capacitor. (b) the plate separation is decreases to d//2 . Find the extra charge given by the battery to the positive plate. (c) work done in reducing separation between plates.

A parallel plate capacitor each with plate area A and separation ‘d’ is charged to a potential difference V. The battery used to charge it is then disconnected. A dielectric slab of thickness d and dielectric constant K is now placed between the plates. What change if any, will take place in (i) charge on the plates (ii) electric field intensity between the plates, (iii) capacitance of the capacitor Justify your answer in each case

Out of the following statements (A) The capacity of a conductor is affected due to the presence of an uncharged isolated conductor (B) A conductor can hold more charge at the same potential if it is surrounded by dielectric medium.

A parallel plate capacitor filled with a material of dielectric constant K is charged to a certain voltage and is isolated. The dielectric material is removed. Then (a) The capacitance decreases by a factor K (b) The electric field reduces by a factor K (c ) The voltage across the capacitor increases by a factor K (d) The charge strored in the capacitor increases by a factor K

A parallel plate capacitor filled with a material of dielectric constant K is charged to a certain voltage and is isolated. The dielectric material is removed. Then (a) The capacitance decreases by a factor K (b) The electric field reduces by a factor K ( c) The voltage across the capacitor increases by a factor K (d) The charge stored in the capacitor increases by a factor K .

NARAYNA-CAPACITANCE-C.U.Q
  1. A parallel plate condenser is charged by connected it to a battery. Wi...

    Text Solution

    |

  2. A parallel plate capacitor of capacity C(0) is charged to a potential ...

    Text Solution

    |

  3. Select correct statements (a) charge cannot be isolated (b) Repuls...

    Text Solution

    |

  4. A variable parallel plate capacitor and an electroscope are connected ...

    Text Solution

    |

  5. Three idential capacitors are combined differently. For the same volta...

    Text Solution

    |

  6. The magnitude of electric field vecE in the annular region of a charge...

    Text Solution

    |

  7. Two idential capacitors are joined in parallel, charged to a potential...

    Text Solution

    |

  8. Two parallel plate air capacitors are construted, one by a pair of iro...

    Text Solution

    |

  9. Select correct statement for a capacitor having capacitance C, is conn...

    Text Solution

    |

  10. Van Graff genetor is used to :

    Text Solution

    |

  11. A number of spherical conductors of different radii have same potentia...

    Text Solution

    |

  12. Three charged particles are initially in position 1, "They are free to...

    Text Solution

    |

  13. An insulator plate is passed between the plates of a capacitor. Then c...

    Text Solution

    |

  14. Read the following statements (a) Non polar molecules have uniform c...

    Text Solution

    |

  15. The capacitance of a capacitor depends on

    Text Solution

    |

  16. The electric field (vec( E)) between two parallel plates of a capacito...

    Text Solution

    |

  17. For metals the value of dielectric constant (K) is

    Text Solution

    |

  18. A capacitor C is connected to a battery circuit having two switches S(...

    Text Solution

    |

  19. Figure show two capacitors connected in series and joined to a battery...

    Text Solution

    |

  20. Two condensers of unequal capacities are connected in series across a ...

    Text Solution

    |