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An insulating sphere of radius 15 cm has a uniform charge density throughout its volume. If the magnitude of the electric field at a distance of 4.1 cm from the center is 90000 N/C, what is the magnitude of the electric field at 20.5 cm from the center? Answer in units of N/C.

An insulating sphere of radius 15 cm has a uniform charge density throughout its volume. If the magnitude of the electric field at a distance of 4.1 cm from the center is 90000 N/C, what is the magnitude of the electric field at 20.5 cm from the center? Answer in units of N/C.

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An insulating sphere of radius 15 c m has a uniform charge density throughout its volume.
If the magnitude of the electric field at a distance of 4.1 c m from the center is 90000 N / C , what is the magnitude of the electric field at 20.5 c m from the center? Answer in units of N / C .

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