Question

With the help of a diagram describe an activity to draw the magnetic field lines around a bar magnet

Answer 1

it is found in s.chand for better understanding
it is not show clearly with diagram here

Answer 2

Fix s sheet of white paper on a drawing board using some adhesive material

Place a bar magnet in the centre of it

Sprinkle some iron fillings uniformly around a bar magnet

Now tap the board gently

You will observe the iron fillings arrange in a pattern