Home
Class 12
PHYSICS
An electron of mass m, moves around the ...

An electron of mass m, moves around the nucleus in a circular orbit of radius r under the action of centripetal force 'F'. The equivalent electric current is 

A

`(e)/(2pi)sqrt((F)/(mr))`

B

`2piesqrt((F)/(mr))`

C

`(e)/(pi)sqrt((F)/(mr))`

D

`(e)/(2pi)sqrt((mr)/(F))`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    AAKASH SERIES|Exercise EXERCISE - II|84 Videos
  • CURRENT ELECTRICITY

    AAKASH SERIES|Exercise PROBLEMS (LEVEL-II)|26 Videos
  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH SERIES|Exercise PRACTICE EXERCISEX|44 Videos

Similar Questions

Explore conceptually related problems

A body is moving along a circle of radius 'r' under the influence of centripetal force F. Its total energy is

In an atom two electrons move around the nucleus in circular orbits of radii R and 4R. The ratio of the time taken by them to complete one revolution is

If a planet of mass .m. is revolving around the sun in a circular orbit of radius .r. with time period T, then the mass of the sun is

AAKASH SERIES-CURRENT ELECTRICITY-EXERCISE - III
  1. In a hydrogen tube it is observed that through a given cross-section 3...

    Text Solution

    |

  2. An electron of mass m, moves around the nucleus in a circular orbit of...

    Text Solution

    |

  3. In a straight conductor of uniform cross-section charge q is flowing f...

    Text Solution

    |

  4. The current density varies with radial distance r as J=ar^(2) in a cyl...

    Text Solution

    |

  5. A n-type silicon sample of width 4xx10^(-3)m, thickness 25xx10^(-5)m a...

    Text Solution

    |

  6. A hollow cylinder (rho=2.2xx10^(-8)Omega-m) of length 3 m has inner an...

    Text Solution

    |

  7. n conducting wires of same dimension but having resitives 1,2,3,…..n a...

    Text Solution

    |

  8. The sides of rectangular block are 2cm, 3cm and 4 cm. The ratio of the...

    Text Solution

    |

  9. Resistance of a wire is 8Omega. It is drawn in such away that it exper...

    Text Solution

    |

  10. A potential difference is applied between the ends of a conductor of u...

    Text Solution

    |

  11. A potential difference of 30V is applied between the ends of a conduct...

    Text Solution

    |

  12. An electrical cable of copper has just one wire of radius 9 mm. Its re...

    Text Solution

    |

  13. Find the value of colour coded resistance shown is fig

    Text Solution

    |

  14. The colour coded carbon resistance has three bands. The bands from lef...

    Text Solution

    |

  15. A carbon resistor of (47pm 4.7)kOmega is to marked with rings of diffe...

    Text Solution

    |

  16. Two wires A and B of same material having their lengths in the ratio 6...

    Text Solution

    |

  17. Three resistance 2Omega, 3Omega and 5Omega are connected in series and...

    Text Solution

    |

  18. Two resistance of 400Omega and 800Omega are connected I series with 6...

    Text Solution

    |

  19. In the steady state, the charge on the capacitor capacity 0.2muF is

    Text Solution

    |

  20. In the given circuit Ammeter reading is same when both switches S(1), ...

    Text Solution

    |