Why do the curved lines around the magnet never intersect each other?

Can two isothermal curves intersect each other?

Why don't two magnetic field lines intersect each other?

Magnetic lines of force may intersect each other.

If two parallel lines are intersected by a transversal, prove that the bisectors of the interior angles on the same side of transversal intersect each other at right angles.

Let us define the function f(x)=x^(2)+x+1 Statement I The equation sin x= f(x) has no solution. Statement II The curve y=sinx and y=f(x) do not intersect each other when graph is oberved.

(A) : No two electric lines of force can intersect each other (R ): Tangent at any point of electric line of force gives the direction of electric field.

If 20 lines are drawn in a plane such that no two of them are parallel and so three are concurrent, in how many points will they intersect each other?

Prove that the curves x^(2)-y^(2)=16 and xy = 15 intersect each other at 90^(@) angle.

Consider two curves C1:y^2=4x ; C2=x^2+y^2-6x+1=0 . Then, a. C1 and C2 touch each other at one point b. C1 and C2 touch each other exactly at two point c. C1 and C2 intersect(but do not touch) at exactly two point d. C1 and C2 neither intersect nor touch each other

According to Newton's law of gravitation each particle attracts every other particle. But we do not see bodies on the surface of the earth moving towards each other. Why?