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I would like to know the strength of gravity as compared to electromagnetism. Im not looking for their classical constant values. It can be compared by saying i.e. gravity is a million billion times weaker etc with the specific numbers. thanks to all those that answer.

Qmechanic
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Dreamer
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2 Answers2

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Here is a quick and simple way to compare the relative strengths of gravity and electromagnetism:

Take two electrons. Place them 1 centimeter apart and measure how strongly they repel one another via electrostatics. Then, knowing their masses, calculate how strongly they attract one another due to gravity.

How far apart would you need to separate the electrons, so that the magnitude of the electrostatic force between them is then about the same as the magnitude of the gravitational force between them at a distance of 1 centimeter? 1.8 light years.

niels nielsen
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Gravity is a million billion billion billion times smaller, or thereabouts.

Professor Sushing
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