Question: A uniform electric field has magnitude E and is directed in the negative x-direction. The potential difference between point a (at x = 0.60 m)

A uniform electric field has magnitude E and is directed in the negative x-direction. The potential difference between point a (at x = 0.60 m) and point b (at x = 0.90 m) is 240 V. (a) which point, a or b, is at the higher potential?
(b) Calculate the value of E.
(c) A negative point charge q = -0.200 µC is moved from b to a. Calculate the work done on the point charge by the electric field.

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