Home
Class 12
PHYSICS
A thin half- ring of radiusb 20 cm is ...

A thin half- ring of radiusb 20 cm is uniformly charged with a total charge of `0.7 nC`. Find the magnitude of the electric field at the centre of the centre of the half-ring.

Text Solution

Verified by Experts

The correct Answer is:
`100Vm^(-1)`
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC FIELD AND POTENIAL

    NN GHOSH|Exercise EXERCISE|21 Videos

  • DYNAMO, MOTOR, TRANSFORMER

    NN GHOSH|Exercise EXERCISE|8 Videos

  • ELECTROMAGNETIC INDUCTION

    NN GHOSH|Exercise EXERICISES-B|18 Videos

Similar Questions

Explore conceptually related problems

A thin half ring of radius R = 20 cm is uniformly charged with a total charge q = 0.70 nC .Find the magnitude of the electric field strength at the curvaite centre of this half-ring.

Semicircular ring of radius 0.5 m is uniformly charged with a total charge of 1.4 xx 10^(-9) C . The electric field intensity at centre of this ring is :-

A semicircular ring of radius 0.5 m is uniformly charged with a total charge of 1.5 xx 10^(-9) coul. The electric potential at the centre of this ring is :

A point charge q is located at the centre fo a thin ring of radius R with uniformly distributed charge -q , find the magnitude of the electric field strength vectro at the point lying on the axis of the ring at a distance x from its centre, if x gt gt R .

A sphere of radius R, is charged uniformly with total charge Q. Then correct statement for electric field is (r = distance from centre): -

Consider a circular ring of radius r, uniformly charged with linear charge density lambda . Find the electric potential aty a point on the exis at a distance x from the centre of the ring. Using this expression for the potential, find the electric field at this point.

At which distance along the centre axis of a uniformaly charged plastic disc of radius R is the magnitude of the electric field equal to one-half the magnitude of the field at the centre of the surface of the disc ?

A thin circular ring of radius r is uniformly charged over its length.Consider two points the centre of ring 0 and a point P on the axis of the ring at a distance a from the centre of the ring.If ratio of potential at points 0 and P is (V_(0))/(V_(p))=(sqrt(10))/(1) then value of (a)/(r) is

A ring of radius R is with a uniformly distributed charge Q on it .A charge q is now placed in the centre of the ring .Find the increment in tension in the ring.

A spherical conductor of radius 2 cm is uniformly charged with 3 nC. What is the electric field at a distance of 3 cm from the centre of the sphere?

NN GHOSH-ELECTRIC FIELD AND POTENIAL-EXERCISE-B
  1. A thin copper ring of radius a is charged with q units of electricity....

    Text Solution

    |

  2. A an electron is placed at the centre of the copper ring of problem 37...

    Text Solution

    |

  3. A thin half- ring of radiusb 20 cm is uniformly charged with a tot...

    Text Solution

    |

  4. A thin nonconducting ring of radius r has a linear charge density q=q0...

    Text Solution

    |

  5. A thin wire ring of radius r has an electric charge q. What is the ten...

    Text Solution

    |

  6. A charge +Q is uniformly distributed over a thin ring of a radius R. F...

    Text Solution

    |

  7. Three identical particals, each of charge Q=0.5 mu C and mass m=7.5xx1...

    Text Solution

    |

  8. Two small similar balls of mass m are hung by silk threads of length l...

    Text Solution

    |

  9. Calculate the field due to a uniformly charged straight conductor of ...

    Text Solution

    |

  10. Two positive charges q(1) and q(2) are located at points with radius v...

    Text Solution

    |

  11. Point charges q and -q located at the vertices of a square with diagon...

    Text Solution

    |

  12. Two co-axisal rings, each of radius R, are separated by a small distan...

    Text Solution

    |

  13. Find the potential phi of an electric field given by vecE=a(y hati+x h...

    Text Solution

    |

  14. Calculate the potential at a point on the perpendicular bisector of un...

    Text Solution

    |

  15. A ring of radius R carries a charge q uniformly distribited over it. A...

    Text Solution

    |

  16. Electric charge q is uniformly distributed in a spherical space from w...

    Text Solution

    |

  17. A copper rod AB of length l is rotated about one end A with a constan...

    Text Solution

    |

  18. A metal rectangular parallelipiped is moved parallel to itself with ...

    Text Solution

    |

  19. Three small identical netural balls are the verstices of an equila...

    Text Solution

    |

  20. Eight equal charged are placed at the eight corners of a cubewhich ...

    Text Solution

    |