A Small Styrofoam Ball of Mass 0

question 48

Multiple Choice

A small styrofoam ball of mass 0.120 g is placed in an electric field of 6000 N/C pointing downward.What excess charge must be placed on the ball for it to remain suspended in the field?

• A)-16.0 nC
• B)-18.0 nC
• C)-57.2 nC
• D)-125 nC
• E)-196 nC

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