Answer to Question #32850 in Electric Circuits for Aaron Okievs.

Question

It is NOT possible for two magnetic field lines to cross because____________

a. two magnets cannot contribute to the field
b. the field would have to be infinite
c. the field cannot have two different directions
d. the magnetic potential energy would have to be infinite

Answer 1

The right answer is c. the field cannot have two different directions.
Magnetic field lineas are not real, they are just a way to represent the magnetic field. If two lines cross that means that field at this point has two different directions which is not possible.