Yes, there's a Gauss's law for magnetic fields--it's one of Maxwell's Equations. Since there are no magnetic monopoles, it is rather simple: http://en.wikipedia.org/wiki/Gauss%27_law_for_magnetism" .aniketp said:but do magnetic fields have any such law? intuitively, i am inclined to say no,
because magnetic field lines can cross...but i would like a rigorous proof
Gravitation is the force of attraction between two objects with mass. It is one of the four fundamental forces of nature and is responsible for the motion of planets, stars, and other celestial bodies.
The law of gravitation was first proposed by Sir Isaac Newton in 1687 in his book "Principia Mathematica." However, it was later refined and expanded upon by Albert Einstein's theory of general relativity in 1915.
Gauss' law is a fundamental law of electromagnetism that relates the distribution of electric charge to the electric field it creates. It states that the electric flux through a closed surface is equal to the charge enclosed by that surface divided by the permittivity of free space.
Gauss' law is not directly related to gravitation. However, it can be used to derive the inverse-square law of gravitation, which states that the force of gravitation between two objects is inversely proportional to the square of the distance between them.
The mass of an object directly affects the strength of its gravitational field. The greater the mass, the stronger the gravitational field it creates. This is why larger objects, like planets and stars, have a stronger gravitational pull than smaller objects, like rocks or humans.