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# A solid sphere 24 cm in radius carries 17 μC , distributed uniformly throughout its volume?

A solid sphere 24 cm in radius carries 17 μC , distributed uniformly throughout its volume.

Find the electric field strength 48 cm from the sphere's center.

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- NCSLv 78 months agoFavourite answer
Outside a sphere with uniform charge distribution (or any radially symmetric distribution), we can treat the sphere as a point mass.

E = kQ / d²

where k = 1/4πε₀ = 8.99e9N·m²/C²

so here

E = 8.99e9N·m²/C² * 17e-6C / (0.48m)² = 6.6e5 N/C

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