Answer the question regarding earth's magnetism:
In which direction would a compass free to move in the vertical plane point to, if located right on the geomagnetic north or south pole?

Answer the following questions regarding earth's magnetism If a map of magnetic field lines is prepared at Melbourne in Australia , would the lines seem to go into the ground or come out of the ground .

A wire is kept horizontally at a place in the northern hemisphere of the earth . In what direction will force act on the wire due to the vertical component of the earth's magnetic field , if electric current flows through the wire from south to north ?

A short bar magnet placed on a horizontal plane has its axis aligned along the magnetic north- south direction . Null points are found on the magnet . The earth's magnetic field at the place is 0.36G . What is the magnet at the total magnetic field on the normal bisector of the same distance as the null points (i.e., 14 cm) from the centre of the magnet (at null points , field due to a magnet is equal and opposite to the horizontal component of earth's magnetic field . )

What do you mean by neutral point for a bar magnet placed in the geomagnetic field ? What will be the positions of neutral points for the bar magnet with its (i) north pole pointing north , (ii) north pole pointing south ? Show them with the help of suitable diagrams .

A small bar magnet is place horizontally in the magnetic meridian with its north pole pointing south ,. A neutral point is formed on the axis of the bar magnet at a distance of 24 cm from its south pole. If the horizontally component of earth's magnetic field is 0.18xx10^(-4) what will be the magnetic field at a distance of 20 cm north of the south pole?