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CBSE Class 12-science Answered

To describe the magnetic field of earth at a point on its surface, we need to specify three elements. Name and defie those three elements

Asked by Kalindi Varma | 15 Mar, 2014, 09:06: PM
answered-by-expert Expert Answer
To describe the magnetic field of earth at a point on its surface, we must know the following three quantities:
 
(i) Declination: Declination at a place is defined as the angle between the magnetic meridian and geographic meridian.
 
(ii) Dip or inclination: Dip at a place is defined as the angle between directipon of total intensity of earth's magnetic field and a horizontal line in the magnetic meridian at that place.
 
(iii) Horizontal component of earth's magnetic field: It is the component of the total intensity of earth's magnetic field along a horizontal line in the magnetic meridian.
Answered by | 15 Mar, 2014, 10:42: PM

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