Magnetic field lines are always nearly normal to the surface of a ferromagnet at every point. (This fact is analogous to the static electric field lines being normal to the surface of a conductor at every point.) Why?

The line x+y= 6 is a normal to the parabola y^(2)=8x at the point

Why is the electric field always at right angles to the equipotential surface ? Explain.

Magnetic field lines show the direction (at every point) along which a small magnetised needle aligns (at the point). Do the magnetic field lines also represent the lines of force on a moving charged particle at every point ?

Do you find two magnetic field lines intersecting ? Why ?