One final electric field problem

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SUMMARY

The discussion centers on calculating the electric field at point P, located on the axis of a ring-shaped conductor with a radius of 0.029 m and a total positive charge of 1.35 x 10^-9 C. The user attempted to apply the formula E = (kQx) / (x^2 + a^2)^(3/2) but encountered issues, suggesting a potential arithmetic error. The formula itself is confirmed to be correct for this scenario, indicating that the problem lies in the calculation rather than the theoretical approach.

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  • Understanding of electric fields and Coulomb's law
  • Familiarity with the concept of charge distribution
  • Knowledge of basic calculus for applying the electric field formula
  • Proficiency in arithmetic operations and algebra
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  • Review the derivation of the electric field formula for a ring of charge
  • Practice solving similar problems involving electric fields from charged objects
  • Explore the implications of charge distribution on electric field strength
  • Investigate common arithmetic errors in physics calculations
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Students studying electromagnetism, physics educators, and anyone involved in electrical engineering or related fields seeking to deepen their understanding of electric fields and charge distributions.

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A ring-shaped conductor with radius a=.029 m has a total positive charge Q=1.35x10^-9 C uniformly distributed around it. The center of the ring is at the origin.
What is the electric field at point P, which is on the axis at x=.3m?
I used the equation E=(kQx)/(x^2+a^2)^3/2, but this doesn't seem to work.
Many thanks if you could help me!
 
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The formula is correct might be some Arithmetic error
 

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