Consider the plane S formed by the dipole axis and the axis of earth. Let P be point on the magnetic equator and in S. Let Q be the point of intersection of the geographical and magnetic equators. Obtain the declination and dip angles at P and Q.
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Solution
Point P: Point P is in plane S formed by dipole axis and the axis of the earth hence declination is ZERO. Also since point P is on magnetic equator, therefore angle od dip will also be zero.
Point Q: Q lies in the magnetic equator; angle of dip is zero, but the angle of declination is 11.3 degrees.
Final Answer:
At point P dip angle and declination both are zero.
At point Q declination is dip angle is zero, but declination is 11.3 degree.