Calculate force on point charges

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SUMMARY

The discussion focuses on calculating the force between point charges, specifically 2Q and -Q/2, using Coulomb's Law, expressed as F = k * q1 * q2 / d². Participants emphasize the importance of treating forces as vectors, considering both magnitude and direction in calculations. The conversation highlights the necessity of applying the same formula for both positive and negative charges while maintaining vector properties.

PREREQUISITES
  • Coulomb's Law for point charges
  • Vector addition and subtraction
  • Understanding of electric charge (positive and negative)
  • Basic algebra for manipulating equations
NEXT STEPS
  • Study vector addition in physics
  • Explore the implications of negative charges in electric fields
  • Learn about electric force calculations in multiple charge systems
  • Investigate the role of the Coulomb constant (k) in force calculations
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Students in physics, electrical engineers, and anyone studying electrostatics or working with electric forces in theoretical or practical applications.

Shivansh Mathur
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Find the force on 2Q and -Q/2
2. Force between two point charges is given by : F = k.q1.q2 / d[2][/SUP]

The Attempt at a Solution


To find the force on 2q, I added the charges on left side and then calculated it using the formula.

But how do we do it for -Q/2.

Please guide me. Thanks
 
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Same way. But we keep in mind that forces are vectors, with a magnitude and a direction.
 
Yeah. Thanks
 

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