Which is stronger, the electric force between an electron and proton, or the gravitational force between them?

Question

please list sources, as i cannot find any on the internet

Answer 1

The electrical force is far, far stronger.

If you want to know how strong it is, get a magnet and attach it to the underside of some iron or steel object. If it stays up, that means the electromagnetic force of that one magnet is stronger than the gravitational force of SIX SEXTILLION TONNES of rock underneath your feet.

In terms of physics, there are four basic forces in the Universe: Gravity, electromagnetism and the weak and strong nuclear forces. Electromagnetism is approximately 10^36 times stronger than gravity. Written out, that's 1 000 000 000 000 000 000 000 000 000 000 000 000 times stronger (I had to add the spaces to keep Yahoo Answers from putting in three dots at the end instead of listing all the zeroes). That's a lot.

You can read more about it here:
http://en.wikipedia.org/wiki/Fundamental_force

Answer 2

The electromagnetic force is the only one of any significance at the scale of atoms; it is tens of orders of magnitude stronger than gravity. Both forces have infinite extent and obey an inverse square law, gravity dominates on larger scales only because large bodies are generally electrically neutral. The strong and weak nuclear forces are shorter range, the strong nuclear force being of the order 100 times the electromagnetic force at the scale of the atomic nucleus, holding together protons that are electrically repellant. There is plenty of material about this, see this link for example.
http://hyperphysics.phy-astr.gsu.edu/hbase/forces/funfor.html

Answer 3

i think so the gravitaional force is stronger that is GM1M2/R2 it mean r square

Answer 4

what if the forces are related?