Concept explainers
(a) In Figure 20-36 we see that the electric potential increases by 10.0 V as one moves 4.00 cm in the positive x direction. Use this information to calculate the x component of the electric field. (Ignore the y direction for the moment.) (b) Apply the same reasoning as in part (a) to calculate the y component of the electric field. (c) Combine the results from parts (a) and (b) to find the magnitude and direction of the electric field for this system.
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