engineering recuitment ISRO Scientific Assistant Physics 2020 Physics Moving Charges and Magnetism Magnetic Field
Which of the following is false about magnetic field lines?
1
The tangent to the field line at a given point represents the direction of the net magnetic field 'B' at that point
2
Magnetic field lines start at the North pole and end at the South pole.
3
The larger the number of field lines crossing per unit area, the stronger is the magnitude of the magnetic field 'B'.
4
The magnetic field lines do not intersect.