Question

If a ship is proceeding towards the magnetic equator, the uncorrected deviation due to permanent magnetism __________.

A) remains the same
B) decreases
C) is unimportant and may be neglected
D) increases

Answer 1

The uncorrected deviation due to permanent magnetism decreases as a ship approaches the magnetic equator, because the vertical component of the Earth's magnetic field affecting the ship's permanent magnetism lessens.

Step-by-step explanation:

When a ship is proceeding towards the magnetic equator, the uncorrected deviation due to permanent magnetism decreases. This is because as the ship approaches the magnetic equator, the earth's magnetic field becomes more horizontal. The vertical component of the Earth's magnetic field, which affects the permanent magnetism of the ship, lessens as you approach the equator, thereby reducing the deviation caused by the ship's permanent magnetism.