Answer the following questions regarding earth’s magnetism:Geologists claim that besides the main magnetic N-S poles, there are several local poles on the earth’s surface oriented in different directions. How is such a thing possible at all?

Answer the following questions regarding earth’s magnetism:If you made a map of magnetic field ines at Melbourne in Australia, would the lines seem to go Into the ground or come out of the ground?

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

Answer the following questions regarding earth’s magnetism:In which direction would a compass free to move inthe verticalplane point to, if located right on the geomagnetic north or south pole?

Answer the following questions 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 following questions regarding earth’s The earth’s field,it is claimed, roughly approximates the field due to a dipole of magnetic moment 8xx 10^22J//T located at its centre. Check the order of magnitude of this number in some way.

Where on earth’s surface is the value of vertical component of Ihe earth’s magnetic field zero ?

At a certain location In Africa, a compass points 12^@ west of the geographic north. The north tip of the magnetic needle of a dip circle placed in the plane of magnetic meridian points 60^@ above the horizontal. The horizontal component of the earth’s field is measured to be 0.16 G. Specify the direction and magnitude of the earth’s field at the location.

A shortbar magnet placedin ahorizontal plane has Its axis aligned along the magnetic north-south .direction. Null points are found on the axis of themagnet at 14 cm from the centre of the magnet. The earth’s magnetic field at the place is 0.36 G and the angle of.dip is zero. What Is the total magnetic field on the normal bisector of the magnet at the same distance as the null”point (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)

A horizontal straight wire 10m long extending from east to west is falling with a speed of 5.0ms^-1 at right angles to the horizontal component of the earth.s magnetic field 0.3x10^10-4 Wbm^2?. What is the direction of the e.m.f.?