i. Shruti draws magnetic field lines close to the axis of a current carrying circular loop. As she moves away from the centre of circular loop, she observes that the lines keep on diverging. Explain the reason for her observation.
ii. Write two properties of magnetic field lines.
(i) We know the magnetic field is stronger near the current carrying conductor and become weaker as we move from the conductor. In case of a current carrying circular loop, the magnetic field is stronger near the wire of circular loop and weaker at the centre of the loop. Due to this, the magnetic field lines appear as straight lines near the centre. And as we move towards the wire of circular loop . The magnetic field lines appear to be diverging so that they can be circular around the wire of the loop.
(ii) The properties of magnetic field lines are
(a) The direction of magnetic field lines is from North to South pole outside the bar magnet and North to South pole inside the magnet.
(b) Magnetic field lines never intersect each other.