QuestionElectrostatics / E = −dV/dx
In a region, the electric potential varies as shown in the figure. Which one among the following is the correct representation of the magnitude of the associated electric field ?
- (a) Step graph: E decreases from each region to the next across all five regions
- (b) Step graph: E decreases over the first three regions, rises in the fourth, then falls in the fifth
- (c) Step graph: E decreases over the first three regions, then rises in the fourth and rises again in the fifth
- (d) A graph of the same shape as the potential curve
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