Question

The resultant intensity I of the earth's magnetic field can be resolved into two components, viz horizontal component H and vertical component V. Which of the following statements is false of a place closer to the north pole?

• A. V>H
• B. V is nearly equal to I
• C. H is nearly equal to I
• D. $V=\sqrt{I^2-H^2}$

Answer 1

The correct option is C H is nearly equal to I

The Magnetic field line of earth resemble those of a bar magnet.

Its magnetic field lines are parallel at equator, to the earth surface.

At poles field lines are vertical i.e, they point straight down and there is no horizontal component.

Thus H is nearly =I is false.