Calculating Forces in a Square Arrangement of Point Charges

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SUMMARY

The discussion focuses on calculating the forces acting on four point charges arranged in a square formation with sides measuring 0.38 meters. The charges are specified as Point 1 (3nC), Point 2 (19nC), Point 3 (-6nC), and Point 4 (-17nC). The primary formula used for calculating the force between the charges is Coulomb's Law, expressed as F = k * q1 * q2 / r^2. The discussion emphasizes the importance of determining the correct vector directions for the forces, particularly when considering diagonal interactions between the charges.

PREREQUISITES
  • Understanding of Coulomb's Law for electrostatic forces
  • Basic knowledge of vector addition and directionality
  • Familiarity with the Pythagorean theorem for calculating distances
  • Concept of charge interactions: like charges repel, unlike charges attract
NEXT STEPS
  • Study vector addition in physics to accurately determine force directions
  • Learn how to apply the Pythagorean theorem in electrostatic force calculations
  • Explore advanced topics in electrostatics, such as electric field strength
  • Investigate simulation tools for visualizing forces between point charges
USEFUL FOR

Physics students, electrical engineers, and anyone interested in electrostatics and force calculations in charge systems.

dmart1990
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I've been working on this problem for a while but i am getting confused on vector directions.

Four point charges are arranged in a square with sides of 0.38m. Find the magnitude and direction of the force at each corner of the square.


Point 1=3nC Point 2= 19nC


Point 3= -6nC Point 4= -17nC

(this is what the square looks like)



I've been setting up the forces at each point using F=k q1*q2/ r^2 but I am not sure i have the arrows in the right directions and how to calculate the force coming in from the diagonal!

PLEASE HELP!
 
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force on the diagonal the only thing that changes is ur "r" value, use pythagorus to find "r" in terms of directions, opposites repel, likes attract, and direction would be from the charge point of view
 

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