Question

Let $V$ and $H$ be the vertical and horizontal components of earth's magnetic field at any point on earth. Near the North pole

• A. $V>>H$
• B. $V<<H$
• C. $V=H$
• D. $V=H=0$

Answer 1

The correct option is A $V>>H$

Near the North pole $V>>H$ because there angle of dip is nearly ${90}^o$ andhence $H=B_E\cos \delta$ is very very small and $V=B_E\sin \delta$ is nearly equal to $B_E$.