List three magnetic elements that… | Physics

Question 1 Report

List three magnetic elements that determine the earth’s magnetic field at a point.

Answer

Answer Details

The three magnetic elements that fully determine the earth's magnetic field at a point are:

The angle of declination - the angle between the geographic (true) meridian and the magnetic meridian at the point.
The angle of dip (inclination) - the angle that the total earth's magnetic field makes with the horizontal at the point.
The horizontal component of the earth's magnetic field intensity \((B_H)\) - the strength of the horizontal part of the field at the point.

Together these three quantities specify both the direction and the magnitude of the earth's field at any location.

List three magnetic elements that determine the earth’s magnetic field at a point.