Answer the question regarding earth's magnetism:
The angle of dip at a location in southern India is about `18^@.` Would you expect a greater or smaller dip angle in Britain?

Answer the question regarding earth's magnetism: If you made a map of magnetic field lines at Melbourne in Australia, would the lines seem to go into the ground or come out of the ground?

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 question regarding earth's magnetism: The earth's field, it is claimed, roughly approximates the field due to a dipole of magnetic moment 8 xx 10^(22) JT^(-1) located at its centre. Check the order of magnitude of this number in some way.

A place where the vertical component of Earth's magnetic field is zero has the angle of dip equal to .........

A place where the vertical component of Earth's magnetic field is zero has the angle of dip equal to ......... .

A long straight horizontal cable carries a current of 2.5 A in the direction 10^@ south of west to 10^@ north of east. The magnetie meridian of the place happens to be 10^@ west of the geographie meridian. The earth's magnetic field at the location is 0.33 G, and the angle of dip is zero. Locate the line of neutral points (ignore the thickness of the cable)? (At neutral potnts, magnetic field due to a current-carying cable is equal and opposite to the horizontal component of earth's magnetic field.)