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Equipotential lines for some region of space are shown in the figure below. Supp

ID: 1580147 • Letter: E

Question

Equipotential lines for some region of space are shown in the figure below. Suppose that v1--2.0 v, v2°-4.0 v, v)" 0 m 1 m 2m 3 m 4 m or 1) What is the approximate electric field at point A? Enter a positive value if the electric field points in the +x direction and a negative value if if the electric field points in the -x direction. (Express your answer to two significant figures.) /m Submit You currently have 2 submissions for this question. Only 3 submission are allowed. You can make 1 more submissions for this question. 2) What is the approximate electric field at point B? Enter a positive value if the electric field points in the +x direction and a negative value if if the electric field points in the -x direction. (Express your answer to two significant figures.) V/m Submit

Explanation / Answer

1) electric field at point A = elctric field in the region of x = 0 to x = 2m

= delta_V/d

= ( 0 - V1)/2

= (0 - (-2))/2

= 1 V/m

2) at point B, E = delta_V/dx

= (-4 - (-8))/1

= 4 V/m