Home
Class 12
PHYSICS
An electron moving with the speed 5xx10^...

An electron moving with the speed `5xx10^(6)` per sec is shot parallel to the electric field of intensity `1xx10^(3)N//C`. Field is responsible for the retardation of motion of electron. Now evaluate the distance travelled by the electron before coming to rest for an instant (mass of `e= 9xx10^(-31)Kg` charge `= 1.6xx10^(-19)C)`

A

7 m

B

0.7 mm

C

7 cm

D

0.7cm

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    ERRORLESS |Exercise Ordinary Thinking Objective Questions (Electric Dipole)|38 Videos

  • ELECTROSTATICS

    ERRORLESS |Exercise Ordinary Thinking Objective Questions (Electric Flux and Gauss.s Law)|28 Videos

  • ELECTROSTATICS

    ERRORLESS |Exercise Ordinary Thinking Objective Questions (Electric Flux and Gauss.s Law)|28 Videos

  • ELECTRONICS

    ERRORLESS |Exercise Selv Evaluation Test|23 Videos

  • HEATING AND CHEMICAL EFFECT OF CURRENT

    ERRORLESS |Exercise Self Evaluation Test|14 Videos

Similar Questions

Explore conceptually related problems

An electron moving with a speed of 5xx10^(6)m//s is shot parallel to the electric field of strength 1xx10^(3) N/C arranged so as to retard its motion. How far will the electron travel in the field before coming (momentarily) to rest? ( m_(e)=9.1xx10^(-31)kg )

Calculate the speed of the electron in the first Bohr orbit given that h=6.6xx10^(-34) Js, m=9.11xx10^(-31) kg and e=1.603xx10^(-19) C .

Calculate the de Broglie wavelength of an electron moving with a velocity of 0.3c. Rest mass of an electron is 9.1xx10^(-31)kg.

Find the de-Broglie wavelength associated with an electron moving with a velocity 0.5 c and rest mass = 9.1 xx 10^(-31) kg .

The voltage across the electrodes of a cathode ray tube is 1000 V . Calculate the speed of the electron. Given mass of an electron =.1xx10^(-31)kg and charge on electron =1.6xx10^(16)C .

Calculate the ratio of electrostatic to gravitational force between two electrons placed at certain distance in air. Given that m_(e)= 9.1xx10^(-31) kg,e= 1.6xx10^(-19)C and G=6.6xx10^(-11)Nm^(-2) .

An X- ray tube operates at 27 kV . Find the maximum speed of an electron striking the anticathode. Given mass of electron =9xx10^(31)kg and charge on electron =1.6xx10^(-19)C .

ERRORLESS -ELECTROSTATICS -Ordinary Thinking Objective Questions (Electric Field and Potential)
  1. A hollow conducting sphere is placed in an electric field produced by ...

    Text Solution

    |

  2. A point charge is kept at the centre of a metallic insulated spherical...

    Text Solution

    |

  3. An electron moving with the speed 5xx10^(6) per sec is shot parallel t...

    Text Solution

    |

  4. An electron enters in high potential region V(2) from lower potential ...

    Text Solution

    |

  5. The electric potential at the surface of an atmoic nucleus (Z = 50) of...

    Text Solution

    |

  6. A pellet carrying a charge of 0.5 coulomb is accelerated through a pot...

    Text Solution

    |

  7. A particle has a mass 400 times than that of the elctron and charge is...

    Text Solution

    |

  8. An electron (charge = 1.6 xx 10^(-19) coulomb) is accelerated through ...

    Text Solution

    |

  9. The charge given to a hollow sphere of radius 10 cm is 3.2 xx 10^(-19)...

    Text Solution

    |

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

    Text Solution

    |

  11. A charge 10 esu is placed at a distance of 2 cm from a charge 40 esu a...

    Text Solution

    |

  12. A table tennis ball covered with a conducting paint is suspended by a ...

    Text Solution

    |

  13. A sphere of 4 cm radius is suspended within a hollow sphere of 6 cm ra...

    Text Solution

    |

  14. State which of the following is correct

    Text Solution

    |

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

    Text Solution

    |

  16. When a negative charge is taken at a height from earth's surface, then...

    Text Solution

    |

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

    Text Solution

    |

  18. There are two equipotential surafce as shown in figure. The distance b...

    Text Solution

    |

  19. In bringing an electron towards another electron, the electrostatic po...

    Text Solution

    |

  20. A hollow metal sphere of radius 5 cm is charged such that the potentia...

    Text Solution

    |