The vertical component of the earth's magnetic field is zero at a place where the angle of dip is.....$^o$
$0$
$45$
$60$
$90$
A compass needle will show which one of the following directions at the earth's magnetic pole
The total intensity of earth's magnetic field at the magnetic equator is $5$ $units$. Its value at a magnetic latitude of $37^o $ is equal to
Two normal uniform magnetic field contain a magnetic needle making an angle $60°$ with $F$. Then the ratio of $\frac{F}{H}$ is
A compass needle which is allowed to move in a horizontal plane is taken to a geomagnetic pole. It
At a place, if the earth's horizontal and vertical components of magnetic fields are equal, then the angle of dip will be.......$^o$