Draw a neat labelled diagram for angle of dip.Write a short note on Ea

1.	Draw a neat labelled diagram for angle of dip.Write a short note on Earth’s magnetic field. Mention the extreme values of magnetic field at magnetic poles and magnetic equator.
Answer» i. Magnetic force experienced per unit pole strength is magnetic field \(\overset\rightarrow{B}\) at that place. ii. This field can be resolved in components along the horizontal (\(\overset\rightarrow{B}_H\)) and along vertical (\(\overset\rightarrow{B}_v\)). iii. The two components are related with the angle of dip (ø) as, B_H = B cos ø, B_v= B sin ø \(\frac{B_v}{B_H}\) = tan ø B² = \(B^2_v+B^2_H\) ∴ B = \(\sqrt{B^2_V+B^2_H}\) iv. At the magnetic North pole: \(\overset\rightarrow{B}=\overset\rightarrow{B}_V\) directed upward, \(\overset\rightarrow{B}_H\) = 0 and ø = 90°. v. At the magnetic south pole: \(\overset\rightarrow{B}=\overset\rightarrow{B}_V\) directed downward, \(\overset\rightarrow{B}_H\) = 0 and ø = 270°. vi. Anywhere on the magnetic equator (magnetic great circle): B = B_H along South to North, \(\overset\rightarrow{B}_V\) = 0 and ø = 0

Draw a neat labelled diagram for angle of dip.Write a short note on Earth’s magnetic field. Mention the extreme values of magnetic field at magnetic poles and magnetic equator.

Answer»

i. Magnetic force experienced per unit pole strength is magnetic field \(\overset\rightarrow{B}\) at that place.

ii. This field can be resolved in components along the horizontal (\(\overset\rightarrow{B}_H\)) and along vertical (\(\overset\rightarrow{B}_v\)).

iii. The two components are related with the angle of dip (ø) as, B_H = B cos ø, B_v= B sin ø

\(\frac{B_v}{B_H}\) = tan ø

B² = \(B^2_v+B^2_H\)

∴ B = \(\sqrt{B^2_V+B^2_H}\)

iv. At the magnetic North pole: \(\overset\rightarrow{B}=\overset\rightarrow{B}_V\) directed upward, \(\overset\rightarrow{B}_H\) = 0 and ø = 90°.

v. At the magnetic south pole: \(\overset\rightarrow{B}=\overset\rightarrow{B}_V\) directed downward, \(\overset\rightarrow{B}_H\) = 0 and ø = 270°.

vi. Anywhere on the magnetic equator (magnetic great circle): B = B_H along South to North, \(\overset\rightarrow{B}_V\) = 0 and ø = 0

Draw a neat labelled diagram for angle of dip.Write a short note on Earth’s magnetic field. Mention the extreme values of magnetic field at magnetic poles and magnetic equator.

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment