In oldern time what uses of Magnet is there? Give in 2,3 Points.
Magnet used in magnetic compass.
Used in separating magnetic material from the mixture of different materials etc.
Give equations of two lines in the same plane which are intersecting at point(2,3).
Fig. 10.13 shows a bar magnet placed on the table top with its north pole pointing towards south. The arrow shows the north-south dirction. There are no other magnets or magnetic material nearby.
(a) Insert two magnetic fiels lines on either side of the magnet using arrow head to show the direction of each field line.
(b) Indicate by crosses, the likely positions of the neutral points.
(c) What is the magnitude of the magnetic field at each neutral points ? Give a reason for your answer.