Planets producing larger magnetic field have larger
Rotational speed
Density
Mass
Size
Intensity of magnetic field due to earth at a point inside a hollow steel box is
A dip needle lies initially in the magnetic meridian when it shows an angle of dip $\theta $ at a place. The dip circle is rotated through an angle $x$ in the horizontal plane and then it shows an angle of dip $\theta '$. Then $\frac{{\tan \theta '}}{{\tan \theta }}$ is
The angle of dip at the magnetic equator is....$^o$
At the magnetic poles of the earth, a compass needle will be
The angle between the magnetic meridian and geographical meridian is called