Q. 2 A3.8( 4 Votes )
Give the characteristic of magnetic field lines.
Following are some characteristics of the magnetic field lines:
•The direction of magnetic field inside the magnet is from S to N. Which we have observed, but outside the magnet the direction of magnetic field lines is from North to South, the reason behind that is the next characteristic.
•Magnetic field lines always form close loop. They can never have loose ends. They always start from a pole and end up on another pole. This characteristic is the most important characteristic this is also the reason behind why outside the magnet the direction of field line is north to south.
•Closure the magnetic field lines stronger the magnetic field there is. We can think it like magnetic field lines are very close to each other near the magnetic bar. But as we go far away they also start separating and show weak magnetic field.
•Magnetic field lines can never cross each other. Magnetic field lines always form close loop. And any point in a magnetic field always a certain direction but if magnetic field lines cross each other, that will result into two direction of a magnetic field on a single point which is impossible.
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