Home > Astronomy > Light and Fundamental Forces

What is the difference between gravitational force and electromagnetic force?

Answer 1

Gravity is weaker force than Electromagnetism.
Gravitational Forces are usually increased when a larger mass is accumulated, whereas Electromagnetic Forces are made when there are slight imbalances caused by small separations of charge.

The magnets on a fridge only fall off when they are detached, demonstrating the fact that electromagnetic forces are stronger than gravitational forces.

Moving charge in a wire, atom, or molecule creates an electromagnetic field that circulates and is the source of electromagnetic force. Electromagnetism is exerted by the electromagnetic interaction of electrically charged particles or magnetically polarized particles or objects.

To put it simply, this is an easy way to make an electromagnet: take an iron nail, wrap and coil some (insulated) copper wire around it, and place the ends of the wire on a battery to start moving the charges inside.

Hope the extra information and this help.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Asher Cohen

Gravitational force is the force of attraction between two masses due to their mass, while electromagnetic force is the force between electrically charged particles.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.