A solid insulating sphere of 2.0 cm radius is uniformly charged throughout its volume with an unknown total charge Q. The electric field generated by the charged sphere is measured to be 90,000 N/C at a location 1.0 cm from the center of the sphere. Also, the electric field is observed to point away from the center of the sphere. a) Determine the magnitude and sign of Q.  b) Calculate the electric field outside the sphere, 1.0 cm away from its surface.

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.