A small plastic ball of mass m = 1.00 g is suspended by a string of length L = 16.5 cm in a uniform electric field, as shown in the figure below. If the ball is in equilibrium when the string makes a e = 17.5° angle with the vertical as indicated, what is the net charge on the ball? E = 1.00 x 103 N/C L.

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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.