Home
Class 12
PHYSICS
A total charge of 5 muC is distributed u...

A total charge of `5 muC` is distributed uniformly on the surface of the thin walled semispherical cup. If the electric field strength at the centre of the hemisphere is `9xx10^(8) NC^(-1)`, then the radius of the cup is
`(1/(4pi epsi_(0))=9xx10^(9) N-m^(2) C^(-2))`

A

5 mm

B

10 mm

C

5 cm

D

10 cm

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    DC PANDEY|Exercise Match the columns|5 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITORS

    DC PANDEY|Exercise (C) Chapter exercises|50 Videos

  • GRAVITATION

    DC PANDEY|Exercise All Questions|120 Videos

Similar Questions

Explore conceptually related problems

The electric field due to a charge at a distance of 3 m from it is 500 NC^(-1) . The magnitude of the charge is [(1)/(4 pi epsi_(0)) = 9 xx 10^(9) N - m^(2)//C^(2)]

The charge density on the surface of a conducting sphere is 64xx10^(-7)C//m^(2) and the electric intensity at a distance of 2 m from the centre of the sphere is 4pixx10^(4)N//C . The radius of the sphere is

A hollow sphere of radius 0.1 m has a charge of 5 xx10^(-8) C . The potential at a distance of 5 cm from the centre of the sphere is (1/(4pi epsi_(0))=9xx10^(9) Nm^(2) C^(-2))

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.

A charge of 4xx10^(-9)C is distributed uniformly over the circumference of a conducting ring of radius 0.3m. Calculate the field intensity at a point on the axis of the ring at 0.4m from its centre, and also at the centre.

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 :

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 :-

What is the capacity of earth? (radius of the earth =6400Km,4piepsi_(0)=(1)/(9xx10^(9)) )

Find the manitude of a charge whose electric field strength is 18 xx 10^(3) N C^(-1) at a distance of 5 m in air .

DC PANDEY-ELECTROSTATICS-Medical entrances gallery
  1. The electric field in a certain region is acting radially outwards and...

    Text Solution

    |

  2. A Gaussian surface in the cylinder of cross-section pia^(2) and length...

    Text Solution

    |

  3. A total charge of 5 muC is distributed uniformly on the surface of the...

    Text Solution

    |

  4. Two small spherical shells a and B are given positive charges of 9 C a...

    Text Solution

    |

  5. a point charge q is situated at a distance r from one end of a thin co...

    Text Solution

    |

  6. When 10^(19) electrons are removed from a neutral metal plate through ...

    Text Solution

    |

  7. A charge Q is uniformly distributed over a large plastic plate. The el...

    Text Solution

    |

  8. A uniform electric field E is created between two parallel ., charge...

    Text Solution

    |

  9. The line A A' is on charged infinite conducting plane which is perpend...

    Text Solution

    |

  10. The electric field at a point on equatorial of a dipole and direction ...

    Text Solution

    |

  11. Pick out the statement which is incorrect?

    Text Solution

    |

  12. An electron of mass m(e ) initially at rest moves through a certain di...

    Text Solution

    |

  13. Two charges 10 muC and - 10 muC are placed at points A. and B separate...

    Text Solution

    |

  14. A uniform electric field exists in space. Find the flux of this field...

    Text Solution

    |

  15. An inclined plane of length 5.60 m making an angle of 45^(@) with the ...

    Text Solution

    |

  16. Two charge spheres separated at a distance d exert a force F on each o...

    Text Solution

    |

  17. If a charge on the body is 1 nC, then how many electrons are present o...

    Text Solution

    |

  18. Electric field at a point of distance r from a uniformly charged wire ...

    Text Solution

    |

  19. Two equal and opposite charges of masses m(1) and m(2) are accelerated...

    Text Solution

    |

  20. An electric dipole of dipole moment p is placed in a uniform external ...

    Text Solution

    |