Home
Class 12
PHYSICS
The earth behaves as a magnet with magne...

The earth behaves as a magnet with magnetic Held pointing approximately from the geographic

A

North to South

B

South to North

C

East to west

D

West to East

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the Earth's magnetic field and its orientation relative to the geographic poles, we can break down the solution into the following steps: ### Step 1: Understand the Earth's Magnetic Field The Earth behaves like a giant magnet with a magnetic field that has a specific orientation. The magnetic field lines emerge from the magnetic south pole and enter the magnetic north pole. **Hint:** Remember that the Earth's magnetic field is similar to that of a bar magnet, with a north and south pole. ### Step 2: Identify the Geographic and Magnetic Poles The geographic poles of the Earth are the points where the Earth's axis of rotation meets its surface. The magnetic poles, however, are where the Earth's magnetic field is vertical. The magnetic north pole is not located at the geographic north pole. **Hint:** Geographic poles are related to the Earth's rotation, while magnetic poles are related to the Earth's magnetic field. ### Step 3: Determine the Angle Between the Geographic and Magnetic Poles The angle between the geographic north and the magnetic north is approximately 11.5 degrees. This is known as the magnetic declination. **Hint:** Keep in mind that the angle of declination can vary depending on your location on Earth. ### Step 4: Analyze the Orientation of a Suspended Magnet When a magnet is freely suspended, it will align itself with the Earth's magnetic field. The north pole of the magnet will point towards the magnetic north pole of the Earth, while the south pole of the magnet will point towards the magnetic south pole. **Hint:** A suspended magnet always aligns itself with the magnetic field lines, pointing from magnetic south to magnetic north. ### Step 5: Conclusion Thus, if we consider the orientation of a magnet suspended in the Earth's magnetic field, it will point from the magnetic south to the magnetic north. Therefore, the correct answer to the question is that the magnetic field points approximately from the geographic south to the geographic north. **Final Answer:** The magnetic field points approximately from the geographic south to the geographic north.
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM AND MATTER

    NCERT FINGERTIPS|Exercise Magnetisation And Magnetic Intensity|11 Videos
  • MAGNETISM AND MATTER

    NCERT FINGERTIPS|Exercise Magnetic Properties Of Materials|26 Videos
  • MAGNETISM AND MATTER

    NCERT FINGERTIPS|Exercise Magnetism And Gauss'S Law|2 Videos
  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos
  • MOVING CHARGES AND MAGNETISM

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

Assertion : When a bar magnet is freely suspended, it points in the north-south direction. Reason : The earth behaves as a magnet with the magnetic field pointing approximately from the geographic south to north.

The earth's magnetic field is approximately

Which magnetic pole is closest to the geographic north pole?

A magnet of length 10 cm and dipole moment 1.44 Am^2 is placed on a horizontal surface in such a manner that its north pole is pointing towards the geographical north. Where will be the null point located from the centre of wire? Assume the horizontal component of Earth's magnetic field as 18muT .

A short bar magnet of magnetic moment 0*5JT^-1 is placed with its magnetic axis in the magnetic meridian, with its north pole pointing geographic north. A neutral point is obtained at a distance of 0*1m from the centre of the magnet. Find the horizontal component of earth's magnetic field.

Our earth behaves as it has a powerful magnet within it. The value of magnetic field on the surface of earth is a few tenth of gauss (1G = 10^(-4) T) There are three elements of Earth’s magnetism (i) Angle of declination (ii) Angle of dip (iii) Horizontal component of Earth’s magnetic field. In the magnetic meridian of a certain place, the horizontal component of Earth’s magnetic field is 0.6 G and the dip angle is 53^@ . The value of vertical component of earth's magnetic field at this place is

NCERT FINGERTIPS-MAGNETISM AND MATTER -The Earth'S Magnetism
  1. The earth behaves as a magnet with magnetic Held pointing approximate...

    Text Solution

    |

  2. The strength of the earth's magnetic field is

    Text Solution

    |

  3. Which of the following is responsible for the earth's magnetic field?

    Text Solution

    |

  4. Which of the following is independent quantities is no used to specify...

    Text Solution

    |

  5. If you made a map of magnetic field lines at Melbourne in Australia, ...

    Text Solution

    |

  6. The horizontal and vertical components of earth's magnetic field at a ...

    Text Solution

    |

  7. Let the magnetic field on earth be modeled by that of a point magneti...

    Text Solution

    |

  8. Consider the plane S formed by the dipole axis and the axis of earth. ...

    Text Solution

    |

  9. The dip angle at a location in southern India is about 18^(@). Then th...

    Text Solution

    |

  10. What is the angle of dip at a place where horizontal and vertical comp...

    Text Solution

    |

  11. The vertical component of earth's magnetic field at a place is sqrt3 ...

    Text Solution

    |

  12. At a certain location in Africa, compass points 12^@ west of geographi...

    Text Solution

    |

  13. Assume the dipole model of earth's magnetic field B which is given by ...

    Text Solution

    |

  14. The angle of dip at the poles and the equator respectively are

    Text Solution

    |

  15. At a given place on earth's surface the horizontal component of earths...

    Text Solution

    |

  16. The earth's field departs from its dipole shpae substantially at large...

    Text Solution

    |

  17. In the magnetic meridian of a certain place, the horizontal component ...

    Text Solution

    |

  18. The earth's magnetic field at the equator is approximately 0*4G, Estim...

    Text Solution

    |

  19. A compass needle whose magnetic moment is 60Am^2 pointing geograhic no...

    Text Solution

    |