List of top Physics Questions on the earth's magnetic field

In a deflection magnetometer, the external magnet should be replaced:

A galaxy is moving away from the Earth so that a spectral line at 600 nm is observed at 601 nm . Then the speed of the galaxy with respect to the Earth is

The magnetic field of earth at the equator is approximately $4 \times 10^{-5} \, T$. The radius of earth is $6.4 \times 10^6 \, m$. Then the dipole moment of the earth will be nearly of the order of:

The earth?? magnetic field always has a vertical component except at the

What will happen to the weight of the body at the south pole, if the earth stops rotating about its polar axis?

The angle of dip at a place is $ {{37}^{o}} $ and the vertical component of the earths magnetic field is $ 6\times {{10}^{-5}}T. $ The earths magnetic field at this place is $ (tan\text{ }{{37}^{o}}=3/4) $

The value of horizontal component of earths magnetic field at a place is $0.35\times10^{-4}$ tesla. If the angle of dip is $60^0$, the value of vertical component of earths magnetic field is about :

The true value of angle of dip at a place is $60^\circ$, the apparent dip in a plane inclined at an angle of $30^{\circ}$ with magnetic meridian is

The truthfulness or falsity of a statement is called its

The neutral point in the magnetic field of a horizontally placed bar magnet is a point where the magnetic field due to the bar magnet is :

The angle of dip at a place on the earth's surface gives

Same current ''i'' is flowing in three infinitely long wire along positive x, y and z directions. The magnetic field-at a point (0,0-a) would be

Isoclinic lines are the lines joining places of :

At a place the angle of dip is $30^{\circ}$ . If the horizontal component of the earth?s magnetic field is $H$, then the total field intensity is