The Earth's Magnetism
The Earth's Magnetism: Overview
This topic briefs on Earth's magnetism. The northern magnetic pole, the southern magnetic pole and the giant magnetic dipole are also explained here in detail.
Important Questions on The Earth's Magnetism
The electric current produced by convective motion of metallic fluid in the outer core of the earth is known as
At certain place, the horizontal component of earth's magnetic field is 3.0 G. The angle of dip at the place is . The magnetic field at that place would be
At to the magnetic meridian, the apparent dip is .The true dip is:
The apparent angle of dip and angle of dip are the same.
Differentiate between apparent angle of dip and angle of dip.
A dip circle shows an apparent dip of . At that place, the true dip is . If the dip circle is rotated by , what will be the apparent dip?
Agonic lines is a special case of isogonic lines.
Are there any special cases in isogonic lines? Explain.
Agonic lines connect the points with zero magnetic inclination.
What do Isogonic lines on the magnetic map connect?
Is there a line which connects all points of equal declination on a magnetic map? If so, name it.
Isogonic lines are the lines on the magnetic map which connects points of equal inclination.
What will you call the line which connects the points with same inclination on a magnetic map?
Isoclinic lines are the lines on the magnetic map which connects points with equal declination.
Aclinic lines are the lines that passes through those spots on the earth's surface where the magnetic inclination is :
