Home
Class 12
PHYSICS
Statement I: The top of a lightning cond...

Statement I: The top of a lightning conductor of a high building has sharp pointed ends.
Statement II: The surface density of charge at sharp points is very high, resulting in setting up of an electric wind.

A

Statement I is true, statement II is true, statement II is a correct explanation for statement I.

B

Statement I is true, statement II is true, statement II is not a correct explanation for statement I.

C

Statement I is true, statement II is false.

D

Statement I is false, statement II is true.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELEMENTARY PHENOMENA OF ELECTROSTATICS

    CHHAYA PUBLICATION|Exercise EXAMINATION ARCHIVE|2 Videos
  • ELEMENTARY PHENOMENA OF ELECTROSTATICS

    CHHAYA PUBLICATION|Exercise EXERCISE|69 Videos
  • ELECTROMAGNETISM

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|26 Videos
  • KIRCHHOFF'S LAWS AND ELECTRICAL MEASUREMENT

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|16 Videos

Similar Questions

Explore conceptually related problems

Statement I: Total charge on a body is the algebraic sum of charges located at different points of the body. Statement II: Electric charge is additive in nature.

Statement I : The blood pressure in humans is greater at the feet than that at the brain. Statement II : Pressure of liquid at any point is proportional to height, density of liquid and acceleration due to gravity.

Show that electric field intenstity on the surface of a charged conductor is vecE=sigma/ε_0 vecn where sigma is the surface density of charge and vecn is the outward pointing unit normal vector.

Statement I: Diffracton can be seen clearly if the edge of obstacle or slit is very sharp. Statement II: As the size of the slit is much larger than the wave-length, so it is very difficult to capture the effect of diffraction by naked eyes.

This question has statement I and II. Of the four choices given after the statements, choose the one that best describes the two statements. Statement - I : At ice iff water equilibrium, on increasing the pressure freezing point of water decreases. Statement -II : Ice have low density so equilibrium shift in forward direction when pressure is increased.

Statement I: The ratio of the amplitudes of electric and magnetic fields at a point in the electromagnetic wave is same as the velocity of wave. Statement II: If in a medium, mu and in are the magnetic permeability and the electric permittivity respectively, then 1//sqrt(muin) is the velocity of electromagnetic wave in that medium.

CHHAYA PUBLICATION-ELEMENTARY PHENOMENA OF ELECTROSTATICS -ENTRANCE CORNER
  1. Statement I: If there exists attraction between two bodies, both of th...

    Text Solution

    |

  2. Statement I: Mass of a body decreases slightly when it is negatively c...

    Text Solution

    |

  3. Statement I: Total charge on a body is the algebraic sum of charges lo...

    Text Solution

    |

  4. Statement I: The tyres of an aircraft are slightly conducting. State...

    Text Solution

    |

  5. Statement I: The top of a lightning conductor of a high building has s...

    Text Solution

    |

  6. Two identical metallic spheres are given charges +q and -q respectivel...

    Text Solution

    |

  7. A spherical conductor A lies inside a hollow spherical conductor B. Ch...

    Text Solution

    |

  8. Minimum quantity of charge available in nature is

    Text Solution

    |

  9. A, B and C are three concentric metallic shells. Shell A is the innerm...

    Text Solution

    |

  10. Match column I with column II

    Text Solution

    |

  11. Match column I with column II

    Text Solution

    |

  12. A glass rod when rubbed with silk acquires a charge of +3.2 xx 10^(-7)...

    Text Solution

    |

  13. A glass rod when rubbed with silk acquires a charge of +3.2 xx 10^(-7)...

    Text Solution

    |

  14. A hollow spherical conductor of radius 3 cm is charged with a charge ...

    Text Solution

    |

  15. A hollow spherical conductor of radius 3 cm is charged with a charge ...

    Text Solution

    |

  16. A hollow spherical conductor of radius 3 cm is charged with a charge ...

    Text Solution

    |

  17. An insulated spherical conductor of radius l m is charged with a posit...

    Text Solution

    |

  18. The surface area of a body is 10 cm^2 and its surface density of charg...

    Text Solution

    |

  19. A body has -0.8 xx 10^(-18)C charge. What is the number of excess elec...

    Text Solution

    |

  20. A cube of side 2 cm has 72mu C charge. What is the average surface den...

    Text Solution

    |