How Do Charges Affect Electrostatic Force?

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Homework Help Overview

The discussion revolves around understanding the electrostatic force between two point charges, specifically a charge of 8.15 nC and another of 4.18 nC, separated by a distance of 1.95 m. Participants are exploring the nature of the force, including its magnitude and whether it is attractive or repulsive.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are attempting to deduce the nature of the electrostatic force based on the signs of the charges involved. Questions arise regarding how to determine if the charges are alike or different, and what that implies for the force between them.

Discussion Status

Some guidance has been provided regarding the use of Coulomb's law to understand the force, and there is a recognition that like charges repel. However, the discussion is still exploring the criteria for determining the nature of the charges and the resulting force.

Contextual Notes

Participants are navigating the definitions and implications of charge signs, which are critical to understanding the electrostatic interactions in this context.

Bashyboy
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Homework Statement


A 8.15 nC charge is located 1.95 m from a 4.18 nC point charge.
(a) Find the magnitude of the electrostatic force that one charge exerts on the other.
N

(b) Is the force attractive or repulsive?

Homework Equations





The Attempt at a Solution


Is there really a way to deduce the sort of force from the given information?
 
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Yes, use the Coulombs's law.
 
I'm sorry. I meant to deduce what sort of force it is, as in repulsive or attractive.
 
Like charges repel. How do you know if the charges are 'alike'?
 
If they have the same sign, then two objects would repel each other?
 
Yes.
 

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