First slide
Magnetic elements of Earth
Question

If earth is considered as a short magnet with its centre coinciding with the centre of earth. Then the angle of  dip 𝛅 at a place where the magnetic latitude ‘ λ’ given by
 

Moderate
Solution

 

For  Msinλ, point P is  axial point 
Hence  B1=μ04π2MsinλR3
For  Mcosλ point P is equatorial point
        B2=μ04πMcosλR3
Here  B1,B2  represents  BV,BH at the point ‘P’
Dip at the point ‘P’
tanδ=BVB  H =B1B2=2tanλ
 tanδ=2tanλ

Hence key (1) is correct. 
 

Get Instant Solutions
When in doubt download our app. Now available Google Play Store- Doubts App
Download Now
Doubts App