Home
Class 12
PHYSICS
When a piece of polythene is rubbed with...

When a piece of polythene is rubbed with wool, a charge of `-2xx10^(-7) C` is developed on polythene. What is the amount of mass, which is transferred to polythene.

A

`569xx10^(-19)`kg

B

`6.25xx10^(-19)`kg

C

`9.63xx10^(-19)`kg

D

`11.38xx10^(-19)`kg

Text Solution

Verified by Experts

The correct Answer is:
D
`n = q/e`
`therefore" ""mass of n electrons"=q/exx9.1xx10^(-31)`
`= 11.38xx10^(-19)kg`
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

A polythene piece rubbed with wool is found to have a negative charge of 6xx10^(-7)C . The number of electrons transferred to polythene from wool is

A polythene piece rubbed with wool is found to have negative charge of 3 xx 10^-7 C . Estimate the number of electrons transferred.

A polythene piece rubbed with wool is found to have negative charge of 3.6xx10^(-7)C . Calculate the number of electrons transferred from wool to polythene. If an electron has a mass 9.1 xx 10^(-31) kg , find the mass transferred to polythene.

A polythene piece rubbed with wool is found to have a negative change of 6.4 xx 10^(-19)C . How many electrons have been transferred during the process?

What is the force between two small charged of 2 xx 10^(-7) C placed 30 cm apart in air?

A polythene piece rubbed with wool is found to have a negative charge of 3.2xx10^(-7) C (i) Estimate the number of electrons transferred. (ii) Is there a transfer of mass from wool to polythene ?

A glass rod rubbed with silk acquires a charge + 1.6xx10^(-12)C . What is tha charge on the silk?

NIKITA PUBLICATION-ELECTROSTATICS-Multiple Choice Questions
  1. A polythene piece rubbed with wool is found to have negative charge of...

    Text Solution

    |

  2. When a body is charged by induction the body

    Text Solution

    |

  3. When a piece of polythene is rubbed with wool, a charge of -2xx10^(-7)...

    Text Solution

    |

  4. A conductor has been given a charge -3 xx 10^(-7) C by transferring el...

    Text Solution

    |

  5. The unit of charge is :

    Text Solution

    |

  6. State Coulomb's law of electric force between two charged bodies.

    Text Solution

    |

  7. The force between two electrons separated by a distance r is proportio...

    Text Solution

    |

  8. Coulomb's law is restricted to charged rods and balls only. This state...

    Text Solution

    |

  9. A charge q(1) exerts some force on a second charge q(2) If a third cha...

    Text Solution

    |

  10. When the distance between two charged particles is halved, the force b...

    Text Solution

    |

  11. In a hydrogen atom, the distance between the electron and proton is 2....

    Text Solution

    |

  12. The force of attraction between two charges +30 xx 10^(-9)C and -20 xx...

    Text Solution

    |

  13. Two point charges q(1)=2xx10^(-3) C and q(2)=-3xx10^(-6) C are separat...

    Text Solution

    |

  14. SI unit of permittivity is

    Text Solution

    |

  15. If the distance between two equal point charges is doubled and their i...

    Text Solution

    |

  16. In 1820, concept of electric field was introduced by

    Text Solution

    |

  17. Which one of the following statements is correct ? The space surroundi...

    Text Solution

    |

  18. The quantitative (i.e. both in magnitude and direction) study of an el...

    Text Solution

    |

  19. The force experienced by a unit positive test charge placed at a point...

    Text Solution

    |

  20. Electric intensity at a place due to a charge is

    Text Solution

    |