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![\[
V=\frac{e^{-r / a} \sin \theta}{\varepsilon_{0} \cdot a}
\]
a) find electric field (E)
b) find \( D \) (electric fuux dens](https://media.cheggcdn.com/study/146/146dcbc0-a1a7-45bc-9f6e-82e8950c618e/image)
Expert Answer
a) To find the electric field, we take the negative gradient of the electric potential:E=??VSince the potential only depends on the radial coordinate