No.Sagar Singh said:Hi THere!
can somebody please tell me why gravitation and electrostatic force exist?
why two charges attract or repel each other, and why two masses always attract each other?
Gravitational force is the force of attraction between two objects with mass, while electrostatic force is the force of attraction or repulsion between two charged particles. Gravitational force is always attractive, while electrostatic force can be either attractive or repulsive depending on the charges of the particles.
This is due to the fundamental law of electrostatics, which states that opposite charges attract each other. This is because the positively charged particles are attracted to the negatively charged particles, creating a net force of attraction between the two objects.
The force between two objects decreases as the distance between them increases. This can be seen in both gravitational and electrostatic forces. The further apart two objects are, the weaker the force of attraction or repulsion between them.
No, two objects with the same charge will repel each other. This is because like charges repel each other according to the fundamental law of electrostatics.
The strength of gravitational force depends on the masses of the two objects, with larger masses resulting in a stronger force. For electrostatic force, the strength depends on the magnitude of the charges and the distance between them. Larger charges or smaller distances result in a stronger force of attraction or repulsion.