Question:

At a point $A$ on the earth's surface the angle of dip. $\delta$= +25?. Ata point Bon the earth's surface the angle of dip, $\delta$ = -25?. We can interpret that:

Updated On: May 5, 2024
  • A is located in the northern hemisphere and B is located in the southern hemisphere.
  • A and B are both located in the southern hemisphere.
  • A and B are both located in the northern hemisphere.
  • A is located in the southern hemisphere and B is located in the northern hemisphere.
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The Correct Option is A

Solution and Explanation

Angle of dip is the angle between earth's resultant magnetic field from horizontal. Dip is zero at equator and positive in northern hemisphere.
In southern hemisphere dip angle is considered as negative.
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Magnetite is the world’s first magnet. This is also called a natural magnet.  Though magnets occur naturally, we can also impart magnetic properties to a substance. It would be an artificial magnet in that case.

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Some of the properties of the magnetic field lines are:

  • The lines and continuous and outside the magnet, the field lines originate from the North pole and terminate at the South pole
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  • But here the lines seem to originate from the South pole and terminate at the North pole to form closed loops.
  • More number of close lines indicate a stronger magnetic field
  • The lines do not intersect each other
  • The tangent drawn at the field line gives the direction of the field at that point.