Home
Class 12
PHYSICS
If the field near the earth's surface is...

If the field near the earth's surface is `300V m^(-1)` directed downwards , what is the surface density of change on the surface of the earth?

A

`3.0 xx 10^(-9) C//m^(2)`

B

`5.0 xx 10^(-9) C//m^(2)`

C

`2.6 xx 10^(-9) C//m^(2)`

D

`7.0 xx 10^(-9) C//m^(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    DC PANDEY|Exercise Taking it together|105 Videos

  • ELECTROSTATICS

    DC PANDEY|Exercise Assertion and Reason|15 Videos

  • ELECTROSTATICS

    DC PANDEY|Exercise Check point 1.4|10 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

What is the strength of earth's magnetic field at the surface of earth?

A rocket is fired with a speed v = 2 sqrt (gR) near the earth's surface and directed upward, what is intersteller speed of rocket v^' , where v_e escape speed on the surface of earth

The electric field near the surface of the earth is 300V//m . The surface density of charge on the earth's surface is

The magnitude of the average electric field normally present in the earth's atmosphere just above the surface of the earth is about 150 N/C, directed downward. What is surface charge density of the earth? [Assume that the earth is a conductor having uniform surface charge density.]

The weight of a body on the surface of moon is 1/6th of that on the Earth's surface. It is because acceleration due to gravit on the surface of moon is six times that on the surface of the Earth.

The main atmospheric layer near the surface of the Earth is

The kinetic energy needed to project a body of mass m from the earth's surface to infinity is (R is radius of the earth, g is gravitational acceleration on the surface of the earth)

Rate of change of weight near the earth's surface varies with height h as

DC PANDEY-ELECTROSTATICS-Check point 1.5
  1. The law goverening electrostatics is coulomb's law.In priciple coulomb...

    Text Solution

    |

  2. A surface element vec(ds) = 5 hat(i) is placed in an electric field v...

    Text Solution

    |

  3. A cube of side a is placed in a uniform electric field E = E(0) hat(i)...

    Text Solution

    |

  4. Flux coming out from a positive unit charge placed in air, is

    Text Solution

    |

  5. If the electric flux entering and leaving an enclosed surface respecti...

    Text Solution

    |

  6. Charge of 2 C is placed at the centre of a cube. What is the electric ...

    Text Solution

    |

  7. For a given surface the Gauss's law is stated asoint vecE.dvecA=0. Fro...

    Text Solution

    |

  8. The total electric flux emanating from a closed surface enclosing an a...

    Text Solution

    |

  9. The inward and outward electric flux for a closed surface in unit of N...

    Text Solution

    |

  10. If the flux of the electric field through a closed surface is zero , ...

    Text Solution

    |

  11. Consider the charge configuration and a spherical Gaussian surface as ...

    Text Solution

    |

  12. q(1),q(2),q(3) and q(4) are point charges located at point as shown in...

    Text Solution

    |

  13. The Gaussian surface for calculating the electric field due to a charg...

    Text Solution

    |

  14. If Coulomb's law involved 1/r^3 instead of 1/r^2, would Gauss's law st...

    Text Solution

    |

  15. Two parallel infinite line charges with linear charge densities +lambd...

    Text Solution

    |

  16. An infinite line charge produces a field of 9xx10^(4) NC at a distance...

    Text Solution

    |

  17. A charge of 17.7 xx 10^(-4)C is distributed uniformly over a large she...

    Text Solution

    |

  18. From what distance should a 100 eV electron be fired towards a large m...

    Text Solution

    |

  19. If the field near the earth's surface is 300V m^(-1) directed downward...

    Text Solution

    |

  20. A thin spherical shell of metal has a radius of 0.25 m and carries a c...

    Text Solution

    |