Let $V $ and $H $ be the vertical and horizontal components of earth's magnetic field at any point on earth. Near the north pole
$V > > H$
$V < < H$
$V = H$
$V = H = 0$
The angle between the magnetic meridian and geographical meridian is called
Magnetic meridian is a
A compass needle which is allowed to move in a horizontal plane is taken to a geomagnetic pole. It
At a certain location in Africa, a compass points $12^o$ West of the geographic North. The North tip of the magnetic needle of a dip circle placed in the plane of magnetic meridian points $60^o$ above the horizontal. The horizontal component of the earth's field is measured to be $0.16\, G$. The magnitude of the earth's field at the location will be
Assertion : If a compass needle be kept at magnetic north pole of the earth the compass needle may stay in any direction.
Reason : Dip needle will stay vertical at the north pole of earth