Because the Magnetic Field lines are closed- we need to express, which area of the space is considered for the given direction
Explanation:
The magnetic field lines have enclosed nature- they do look like a circle. Once we consider a permanent magnet with the north and south pole, in the area outside from the magnet, lines go from the North towards the South pole, where they enter the magnet. However, inside the magnet, these lines have direction from the south to the north pole to close the ends of the line. So, once we consider the directions of the magnetic field inside the magnet, the given statement is not correct.
Due to application of heat on a saturated solution, the interparticle space increases due to increase in the kinetic energy of the particles which allows more solutes to dissolve in the solution thereby making it unsaturated.
