Question
Asked Feb 19, 2020
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Two charged concentric spherical shells have radii of 11.0 cm and 15.5 cm. The charge on the inner shell is 4.30 ✕ 10−8 C and that on the outer shell is 1.80 ✕ 10−8 C. Find the magnitude of the electric field at the following points.

(a) at r = 12.5 cm
 _____________N/C

(b) at r = 20.5 cm
 _____________N/C

(please show the units so that I can follow along easier)

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