14 A Difference Between Coulomb Force and Gravitational Force

Bosley Zhang
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2026/04/13
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1 mins read


Gravitational force is only attractive; it has no repulsive component.

 

Coulomb force, however, is both attractive and repulsive.

 

When two charges are opposite, an attractive force arises.

For example, a positive charge and a negative charge attract each other.

 

When two charges are identical, a repulsive force arises.

For example, a positive charge repels another positive charge, and a negative charge repels another negative charge.


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