question_answer

Which one of the following statement is not correct about the magnetic field?

A) Inside the magnet the lines go from North Pole to South Pole of the magnet

B) Tangents to the magnetic lines give the direction of the magnetic field

C) The magnetic lines form a closed loop

D) Magnetic lines of force do not cut each other

Correct Answer: A

Solution :

                Magnetic field can t > e represented by lines called magnetic lines of force. The following are the properties of magnetic lines of force. (i) They emerge from the north pole and following a curved path enter the north pole and reach back the north pole moving inside the magnet. (ii) Tangents to the lines gives the direction of magnetic field. (iii) The magnetic lines a closed loop. (iv) Two lines never cut each other, if they did not there would have been two tangents at the point of intersection, that is two directions of magnetic field at one point which is impossible.