B Problem 20.48 Part A IP Consider a region in space where a uniform electric fi

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B

Problem 20.48 Part A IP Consider a region in space where a uniform electric field 7400 N/C points in the negative a direction What is the orientation of the equipotential surfaces? Parallel to the z-plane. Parallel to the yz-plane Parallel to the ry-plane. Submit My Answers Give Up Correct Part B Explain. Essay answers are limited to about 500 words (3800 characters maximum, including spaces) 3800 Character(s) remaining Submit My Answers Give Up Part C If you move in the positive direction, does the electric potential increase or decrease? Increases Decreases

Explanation / Answer

Part B )

the electric field is pointing along x direction only there will be no change in potential alon yz plane

therefore equipotential lines will be along yz plane

Part D)

weknow that

dV = E.dr E.dr cos theta

if we along the field potential increases ( theta =0)

if we mone opposite to field potential decreases ( theta = 180 )

E)

15-12 = E.d

3 = E d

d = 0.405 mm

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