Home
Class 12
PHYSICS
A particle of mass 2 g and charge 1 muC ...

A particle of mass 2 g and charge `1 muC` is held at rest on a frictionless surface at a distance of 1m from a fixed charge of 1 mC. If the particle is released it will be repelled. The speed of the particle when it is at distance of 10 m from fixed charge is :

A

`60 ms–1`

B

`75 ms–1`

C

`90 ms–1`

D

`100 ms–1`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-4 (LEVEL-II)|13 Videos
  • ELECTRONICS - SEMI CONDUCTOR

    MOTION|Exercise EXERCISE - 3|29 Videos
MOTION-ELECTROMAGNETISM-Exercise
  1. Two point charges Q and -3Q are placed at some distance apart. If the ...

    Text Solution

    |

  2. If a positive charge is shifted from a low - potential region to a hig...

    Text Solution

    |

  3. A particle of mass 2 g and charge 1 muC is held at rest on a frictionl...

    Text Solution

    |

  4. A charges Q is placed at each of the two opposite corners of a square....

    Text Solution

    |

  5. Two equal positive charges are kept at points A and B. The electric po...

    Text Solution

    |

  6. In the diagram (given below) the broken lines represent the paths foll...

    Text Solution

    |

  7. In previous question if the particles started from rest and all are po...

    Text Solution

    |

  8. A hemisphere (radius R) is placed in electric field as shown in fig. T...

    Text Solution

    |

  9. Two small balls having equal poistive charges Q( coulomb) on each are ...

    Text Solution

    |

  10. A metal sphere A of radius R has a charge of Q on it .The field at a ...

    Text Solution

    |

  11. semicircle of radius R. The electric field at the centre is -

    Text Solution

    |

  12. The potential of a charged drop is v. This is divided into n smaller ...

    Text Solution

    |

  13. When an electric dipole P vecv is placed in a uniform electric field v...

    Text Solution

    |

  14. An electric dipole is placed along the x-axis at the origin O.A point ...

    Text Solution

    |

  15. Two charged metal spheres of radii R and 2R are temporarily placed in...

    Text Solution

    |

  16. Two parallel plate air filled capacitors each of capacitance C, are jo...

    Text Solution

    |

  17. A capacitor when filled with a dielectric K = 3 has charge Q(0), volta...

    Text Solution

    |

  18. Four condenser are joined as shown in the adjoining figure. The capac...

    Text Solution

    |

  19. In a parallel plate capacitor, the separation between the plates is 3m...

    Text Solution

    |

  20. Four metallic plates each with a surface area A of one side and placed...

    Text Solution

    |