name 3 elements of earth magnetic field.
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1. Magnetic declination (θ): At a point on earth the magnetic meridian makes an angle with the geographic meridian. This angle is known as the magnetic declination or just declination.2. Angle of dip (δ): It is the angle made by the direction of the earth’s total magnetic field with the horizontal direction.3. Horizontal component of earth’s magnetic field (BH): It is the component of earth’s magnetic field along the horizontal direction.So the angle of dip is the angle between earth’s magnetic field i.e. B and the horizontal component i.e. BH.
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