Home
Class 12
PHYSICS
A sphere is constructed around a positiv...

A sphere is constructed around a positive point charge q. The work done in moving a unit positive charge on this sphere is numerically equal to

A

infinity

B

zero

C

capacity of sphere

D

potential of sphere

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTRONS AND PHOTONS

    NIKITA PUBLICATION|Exercise MCQs|162 Videos

  • GRAVITATION

    NIKITA PUBLICATION|Exercise Multiple Choice Questions|409 Videos

Similar Questions

Explore conceptually related problems

Work done in moving a positive charge on an equipotential surafce is

Assertion(A): A circle is drawn with a point positive charge (+q) at its centre.The work done in talking a unit positive charge once around it is zero Reason (R ) :Displacement of unit positive charge is zero.

A positive charge +q is located at a point. What is the work done if a unit positive charge is carried once around this charge along a circle ofradius r about :

A positive point charge q is brought near a neutral metal sphere.

A point charge Q is moved along a ciruclar path around another fixed point charge. The work done is zero

Assertion(A): A point charge q is rotated along a circle around another point charge Q .The work done by electric field on the field on the rotating charge in half revolution is zero. Reason (R ) :No work is done to move a charge on an equipotential line or surface.

There is 10 units of charge at the centre of a circle of radius 10 m . The work done in moving 1 unit of charge around the circle once is

Work done in moving a charge on the surface of a charged metallic sphere is ……………. .

NIKITA PUBLICATION-ELECTROSTATICS-Multiple Choice Questions
  1. Two copper spheres A and B of same radii, one hollow and the other sol...

    Text Solution

    |

  2. The dielectric constant of a metal is

    Text Solution

    |

  3. A sphere is constructed around a positive point charge q. The work don...

    Text Solution

    |

  4. The capacity of a parallel plate condenser is C. When the distance bet...

    Text Solution

    |

  5. The dielectric constant k for an insulator cannot be

    Text Solution

    |

  6. A capacitor is connected to a battery of 20 V, so that a charge of 100...

    Text Solution

    |

  7. Six identical capacitors are joined in parallel, charged to a potentia...

    Text Solution

    |

  8. The plates of a parallel plate capacitor are charged up to 100 v. Now,...

    Text Solution

    |

  9. The capacitance of the earth, viewed as a spherical conductor of radiu...

    Text Solution

    |

  10. A 4muF capacitor is charged to 400 V. If its plates are joined through...

    Text Solution

    |

  11. The area of each plate of parallel plate condenser is 20cm^(2) and dis...

    Text Solution

    |

  12. A parallel plate condenser is made up of two plates, each of surface a...

    Text Solution

    |

  13. If two conducting spheres are separately charged and then brought in c...

    Text Solution

    |

  14. The parallel plates of a condenser are separated by an insulating mate...

    Text Solution

    |

  15. A condenser is connected across another charged condenser. The energy ...

    Text Solution

    |

  16. Capacity of a parallel plate condenser can be increased by

    Text Solution

    |

  17. A dielectric is introduced between the elements of the condenser kept ...

    Text Solution

    |

  18. When air is replaced by a dielectric medium of constant K, the maximum...

    Text Solution

    |

  19. A parallel plate capacitor is charged and the charging battery is then...

    Text Solution

    |

  20. A metal foil of negligible thickness is introduced between the two pla...

    Text Solution

    |