14. Intext questions III

1. List the properties of magnetic field lines. 

 

Properties of magnetic field lines:

• Magnetic field lines never intersectintersect each other.

• The lengthdensity of the field lines shows the strength of the field.

• Magnetic field lines always make open-loopsclosed-loops.

• Magnetic field lines always emerge from the south polenorth pole and terminate at the south polenorth pole.

2. Why don’t two magnetic lines of force intersect each other?

 

Two magnetic field linesNo two magnetic field lines are found to intersect each other. If they intersect each other, it would mean that the compass needle would point towards two directionsone direction at the point of intersection, which is not practicallypractically possible.