There are two charges with charge q and mass m

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Homework Help Overview

The discussion revolves around a scenario involving two charges with charge q and mass m that are said to be in equilibrium. The original poster questions the relationship between the electrostatic force and gravitational force as indicated by their teacher.

Discussion Character

  • Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • The original poster seeks to understand why the electrostatic force is equated to the gravitational force in the context of equilibrium. Participants discuss the meaning of equilibrium and the implications for net forces acting on the charges.

Discussion Status

The conversation is exploring the definitions and implications of equilibrium in the context of forces acting on the charges. Some participants confirm the understanding that equilibrium implies a net force of zero, while others prompt further exploration of the force vectors involved.

Contextual Notes

There is a reference to a diagram that illustrates the forces acting on the particle, although the specifics of the diagram are not provided. The discussion also hints at the need for clarity regarding all forces at play in the scenario.

Abhishek Das
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There are two charges with charge q and mass m and they are in equilibrium. Then, in the diagram why is my teacher saying that electrostatic force(F)=mg? Below is diagram.
HligTNMrjbquMH3pO78b-yP0kzKbEocKeoElM55wdsd2SCLJ6uBgCnP8I5bFn1YdQdXBTeQeeh041rGwng=w1177-h662-no.jpg


 
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Welcome to PF! When posting a question, please follow the guidelines and fill out all parts of the question template. See https://www.physicsforums.com/threads/guidelines-for-students-and-helpers.686781/

OK, you've started with a diagram that correctly shows the gravity force and the electric force. It might help to also show any other forces acting on the particle.

What does "equilibrium" mean in terms of the forces?
 
Equilibrium means net force is zero, right?
 
Abhishek Das said:
Equilibrium means net force is zero, right?
Yes. That's right. If you added (head-to-tail) the force vectors acting on the particle, what would the diagram look like?
 

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