For each point, B, C, and D, is the potential at that point larger, smaller, or the same as at point A?

A uniform electric field is directed due east. Point B is 2.00 m west of point A, point C is 2.00m east of point A, and point D is 2.00m south of A.


Part A


For each point, B, C, and D, is the potential at that point larger, smaller, or the same as at point A?


1) The potential in a point B is larger than the potential in point A.


2) The potential in a point B is equal to the potential in point A.


3) The potential in a point B is smaller than the potential in point A.





Part B


1) The potential in a point C is larger than the potential in point A.


2) The potential in a point C is equal to the potential in point A.


3) The potential in a point C is smaller than the potential in point A.





Part C


1) The potential in a point D is larger than the potential in point A.


2) The potential in a point D is equal to the potential in point A.


3) The potential in a point D is smaller than the potential in point A.

For each point, B, C, and D, is the potential at that point larger, smaller, or the same as at point A?
The electrical field goes from large (more positive) potential to a smaller (more negative) potential. Point B is directly "upstream" from point A, so would have a more positive potential. Point C is directly downstream from point A, so would be more negative. The potential at point D is directly across from point A, with neither an upstream nor a downstream component, so it is at the same potential as point A.
Reply:_________________________





E = - dV /dr means potential falls in the direction of field E





As E is towards east, potential falls as one moves east





Point B is 2.00 m west of point A, hence potential is more at point B





Point C is 2.00m east of point A, hence potential at C is less than potential at A





Point D is 2.00m south of A.As point D is on a line perpendicular to electric field E, point D and point A are on equipotential line or surface





Part A


For point, B potential is larger than that on point A,





potential at point C, potential is smaller than that on point A,





and D, is the potential is the same as at A





Part A CHOICE 1 is correct , 1) The potential in a point B is larger than the potential in point A.





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Part B CHOICE 3 is correct , 1) The potential in a point C is smaller than the potential in point A.


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Part C CHOICE 2 is correct


2) The potential in a point D is equal to the potential in point A


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