What is the Electric Field at Position D on the Equipotential Surfaces?

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SUMMARY

The discussion focuses on calculating the electric field at position D on a set of equipotential surfaces. The relevant equation used is E = -ΔV/ΔS, where ΔV represents the potential difference and ΔS is the distance between equipotential surfaces, measured at 2.0 cm intervals. Participants emphasize that the electric field can only be approximated by selecting the two nearest equipotential points above position D. The direction of the electric field is determined by the orientation of the equipotential surfaces.

PREREQUISITES
  • Understanding of electric fields and equipotential surfaces
  • Familiarity with the equation E = -ΔV/ΔS
  • Knowledge of potential difference and its calculation
  • Basic graph interpretation skills for analyzing equipotential diagrams
NEXT STEPS
  • Study the concept of equipotential surfaces in electrostatics
  • Learn how to calculate electric fields from equipotential data
  • Explore the relationship between electric field direction and equipotential lines
  • Practice problems involving electric fields and potential differences
USEFUL FOR

Students studying electromagnetism, physics educators, and anyone seeking to understand the relationship between electric fields and equipotential surfaces.

7411
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Homework Statement


The drawing shows a graph of a set of equipotential surfaces in cross section. The grid lines are 2.0 cm apart. Determine the magnitude and direction of the electric field at position D.
Specify whether the electric field points toward the top or the bottom of the drawing.
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Homework Equations


E=-ΔV/ΔS
d=2.0x10-3

The Attempt at a Solution



I am uncertain how to solve for this problem, ΔV is usually between 2 variables, final - initial. Do I repeat this process for each field above point D?
 
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Guys, help?
 
7411 said:
Guys, help?

You can't say EXACTLY what the E field is. You can only approximate it. I would pick the two nearest points on the equipotential lines and work from there.
 

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