Calculating Electric Fields of 3 Charges on a Line

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Homework Help Overview

The problem involves calculating the electric fields and forces acting on a charge (C) due to two other charges (A and B) arranged on a vertical line with a specified separation distance. The focus is on understanding the contributions of each charge to the electric field at charge C.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the relevant electric fields affecting charge C and express confusion about whether to consider the contributions from charge A, charge B, or both. There is an inquiry into how to calculate the magnitude and direction of the electric field and force on charge C.

Discussion Status

Some participants have provided welcoming remarks and encouraged the original poster to share their attempts and specific areas of confusion. There is an acknowledgment that the forces acting on charge C result from both charges A and B, but no consensus or resolution has been reached regarding the calculations.

Contextual Notes

The discussion is framed within the context of homework help, suggesting that participants are expected to explore their understanding and reasoning rather than receive direct solutions.

thekakaru
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Three charged objects are arranged on a vertical line as shown
in the figure. The separation between charges is 3.0 cm.

a) If you wanted to find the force on charge C, which
fields would be relevant? Explain and calculate the
magnitude of this field. Which direction does it point?

b) What is the force, magnitude and direction, acting on charge C?
 

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welcome to pf!

hi thekakaru! welcome to pf! :wink:

show us what you've tried, and where you're stuck, and then we'll know how to help! :smile:
 
I know in general how to find the Efields on charge C and the Eforces on charge C, but i was just confused if the Efield on C is either due to B or due to A and B.
 
hi thekakaru! :smile:

everything affects everything else …

the force on C is the force from A plus the force from B :wink:​
 

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