A uniform electric field has magnitude E and is directed in the negative x direction. The potential difference between point a (at x= 0.50 m ) and point b (at x= 0.85 m ) is 300 V . Part A Which point, a or b, is at the higher potential?

Point b is at the higher potential

Explanation:

Since it is given that electric field is directed in the negative x direction meaning that the potential is increasing on positive x  axis so b (x = 0.85) is at higher potential.

We also know that that the direction of Electric field is always from higher potential to lower potential so b must be at higher potential.

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