A solid metal sphere is shown at the center of a hollow metal sphere. The electric field 8cm away from the center of the inner sphere has a magnitude E1=3.8 N/C and direction as shown. The electric field 17cm away from the center of the sphere has a magnitude of E2=7.5 N/C and direction as shown. What is the total charge on the outer surface of the hollow sphere?

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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.