Home
Class 12
PHYSICS
If an electron moves from rest from a po...

If an electron moves from rest from a point at which potential is `50` volt to another point at which potential is `70` volt, then its kinetic energy in the final state will be

A

`3.2 xx 10^(-10)J`

B

`3.2 xx 10^(-18)J`

C

1 N

D

1 dyne

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATIC POTENTIAL AND CAPACITORS

    DC PANDEY|Exercise (B) Chapter exercises|20 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITORS

    DC PANDEY|Exercise (C) Chapter exercises|50 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITORS

    DC PANDEY|Exercise Check point 2.5|20 Videos

  • ELECTROMAGNETIC WAVES

    DC PANDEY|Exercise Sec C|22 Videos

  • ELECTROSTATICS

    DC PANDEY|Exercise Medical entrances gallery|37 Videos

Similar Questions

Explore conceptually related problems

When a proton is accelerated with 1 volt potential difference, then its kinetic energy is

If 20 J of work has to be done to move an electric charge of 4 C from a point, where potential is 10 V to another point, where potential is V volt, find the value of v.

As electron moves away from the nucleus, its potential energy

A ball of mass 1 kg carrying a charge 10^(-8)C moves from a point A at potential 600 V to a point B at zero potential. The change in its kinetic energy is

A proton is accelerated from rest through a potential of 500 volts. Its final kinetic energy is

IN a conductor, a point P is at higher potential than another point Q. In which direction do the electrons move?

DC PANDEY-ELECTROSTATIC POTENTIAL AND CAPACITORS-(A) Chapter exercises
  1. The electric potential at any point x,y an z in metres is given by V =...

    Text Solution

    |

  2. An electron of mass m and charge e is accelerated from rest through a ...

    Text Solution

    |

  3. If an electron moves from rest from a point at which potential is 50 v...

    Text Solution

    |

  4. The work done in bringing a 20 coulomb charge from point A to point B ...

    Text Solution

    |

  5. If 4 xx 10^(20)eV energy is required to move a charge of 0.25 coulomb ...

    Text Solution

    |

  6. Kinetic energy of an electron accelerated in a potential difference of...

    Text Solution

    |

  7. A hollow conducting sphere is placed in an electric field produced by ...

    Text Solution

    |

  8. Two unlike charges of magnitude q are separated by a distance 2d. The ...

    Text Solution

    |

  9. Two spheres A and B of radius 'a' and 'b' respectively are at same ele...

    Text Solution

    |

  10. A capacitorn of 2 muF charged to 50 V is connected in parallel with an...

    Text Solution

    |

  11. In the electric field of a point chargde q, a cetrain charge is carrie...

    Text Solution

    |

  12. A unifrom electric field having a magnitude E(0) and direction along t...

    Text Solution

    |

  13. Two positive point charges of 12 and 5 microcoulombs, are placed 10 cm...

    Text Solution

    |

  14. When a charge of 3 coulombs is placed in a uniform electric field, it ...

    Text Solution

    |

  15. A particle A has chrage +q and a particle B has charge +4q with each o...

    Text Solution

    |

  16. Three particles, each having a charge of 10 mu C are placed at the con...

    Text Solution

    |

  17. A mass m=20 g has a charge q= 3.0 mC. It moves with a velocity of 20 m...

    Text Solution

    |

  18. Four idenbtial charges +50 mu C each are placed, one at each corner of...

    Text Solution

    |

  19. Two equal charges q are placed at a distance of 2a and a third charge ...

    Text Solution

    |

  20. An alpha-particle is accelerated through a.p.d of 10^(6) volt the K.E....

    Text Solution

    |