Plot the graph of the electrical field

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SUMMARY

The discussion focuses on plotting the electric field created by a point charge of 10^-6 C as a function of distance, specifically from 0.1m to 1m. The correct equation to use is E = k*q/r², where k = 9 x 10^9 N·m²/C², instead of E = Q/(4πe)d². The participants confirm that the graph should reflect an inverse square relationship, and the y-axis must accommodate a scale that spans a factor of 100 due to the range of input values.

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  • Understanding of electric fields and point charges
  • Familiarity with the equation E = k*q/r²
  • Basic graphing skills in physics
  • Knowledge of inverse square laws in physics
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  • Learn how to plot electric fields using Python libraries such as Matplotlib
  • Research the concept of electric field strength and its applications
  • Explore the implications of inverse square laws in different physical contexts
  • Study the significance of constants like k and ε₀ in electrostatics
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Students in physics, electrical engineers, and anyone interested in understanding and visualizing electric fields created by point charges.

jayjay112
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Graph Help!

Plot the graph of the electrical field created by a point charge of 10^-6 C as a funtion of distance to the charge. Plot the graph for the range of the distances from 0.1m to 1m



Should I use this equation... E= Q/(4.pi.e)x(d^2) as this is for
electric field strength and not eletric field created as asked?

If i do use thsi equation,
Do I need a value for e or can i ignore the 4.pi.e and just use E= Q/(d^2)
Do I graph the value of E to the correseponding value i used for d?
Should the graph be an inverse square graph??


Thanks for your help.
 
Last edited:
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jayjay112 said:
Plot the graph of the electrical field created by a point charge of 10^-6 C as a funtion of distance to the charge. Plot the graph for the range of the distances from 0.1m to 1m

Should I use this equation... E= Q/(4.pi.e)x(d^2) as this is for
electric field strength and not eletric field created as asked?

If i do use thsi equation,
Do I need a value for e or can i ignore the 4.pi.e and just use E= Q/(d^2)
Do I graph the value of E to the correseponding value i used for d?
Should the graph be an inverse square graph??

Thanks for your help.

You can use E = k*q/r2 where k = 1/4πεo

That's k= 9*109

Since your scale is a concern as it spans a range of input that is a factor of 10, then your y-axis needs to span a factor of 100.
 

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