When a charge is placed on a metal sphere, it ends up in equilibrium at the outer surface. Use this information to determine the electric field (in N/C) of -2.0 μC charge put on a 9.0 cm radius aluminum spherical ball at the following two points in space. (Enter the radial component of the electric field.) (a) a point 5 cm from the center of the ball (an inside point) = (C N/C) (b) a point 13 cm from the center of the ball (an outside point) = (C N/C)

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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.