Home
Class 12
PHYSICS
An ebonite rod is rubed with fur and is ...

An ebonite rod is rubed with fur and is found to have a charge of `-3.2xx10^(-8)C` on it
(a) Calculate the number of electrons transferred,
(b) What is the charge of rubbing?

Text Solution

Verified by Experts

(a) `q="ne"`
`3.2xx10^(-8)=nxx1.6xx10^(-19)`
`n=2xx10^(11)`.
(b) Charge on fur should be equal and opposite to that on ebonite, i.e. `+3.2xx10^(-8)C`.
Promotional Banner

Topper's Solved these Questions

  • COULOMB LAW AND ELECTRIC FIELD

    CENGAGE PHYSICS|Exercise Subjective|32 Videos
  • COULOMB LAW AND ELECTRIC FIELD

    CENGAGE PHYSICS|Exercise Single Correct|47 Videos
  • COULOMB LAW AND ELECTRIC FIELD

    CENGAGE PHYSICS|Exercise Solved examples|10 Videos
  • COMMUNICATION SYSTEM

    CENGAGE PHYSICS|Exercise QUESTION BANK|19 Videos
  • Current Electricity

    CENGAGE PHYSICS|Exercise QUESTION BANK|40 Videos

Similar Questions

Explore conceptually related problems

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 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 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.

Apolythene piece rubbed will wool is found to have a negative charge of 3.0xx10^(-7)C . (a) Estimate the number of electrons transferred (from which to which )? (b) Is there a transfer of mass from wool to polythene?

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

An ebonite rod is rubbed with fur or wool. What type of charges do they acquire ?

An oil drop has 8.01 xx 10^(-19) C charg .Calculate the number of electrons in this drop.

CENGAGE PHYSICS-COULOMB LAW AND ELECTRIC FIELD-Exercises
  1. (a) Can two bodies having like charge attract each other (yes/No) (b...

    Text Solution

    |

  2. A particle has a charge of +10^(-12)C. (a) Does it contain more or l...

    Text Solution

    |

  3. An ebonite rod is rubed with fur and is found to have a charge of -3.2...

    Text Solution

    |

  4. The electric charge of macroscopic bodies is actually a surplus or def...

    Text Solution

    |

  5. A charged rod attracts bits of dry paper, which after touching the rod...

    Text Solution

    |

  6. A person standing on an ainsulating stool touches a charged insulatd c...

    Text Solution

    |

  7. Define the following statement: " if there were only one electrically ...

    Text Solution

    |

  8. How many megacoulombs of positive(or negative) Charge are present in 2...

    Text Solution

    |

  9. A polythene piece rubbed with wool is found to have a negative charge ...

    Text Solution

    |

  10. Two identical conduction spheres, one having an initial charge +Q and ...

    Text Solution

    |

  11. Two identical conducting spheres are charged by induction and then sep...

    Text Solution

    |

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

    Text Solution

    |

  13. In 1 g of a solid, there are 5xx10^(21) atoms. If one electrons is rem...

    Text Solution

    |

  14. In the arrangement shown in fig. two positive charges, +Q each,are fix...

    Text Solution

    |

  15. Does an electric ccharge experience a force due to the field produced ...

    Text Solution

    |

  16. Two negative charges of a unit magnitude and a positive charge q are p...

    Text Solution

    |

  17. Figure shows three arrangements of an electrons e and two protons p(wh...

    Text Solution

    |

  18. Figure shows two charge particles on an axis. The charges are free to ...

    Text Solution

    |

  19. In fig. a central particle of charge -q is surrounded by two circular ...

    Text Solution

    |

  20. Figure shows four situations in which particles of charge +q or -q are...

    Text Solution

    |