What is the surface charge density of the plane

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A 1.0-μm-diameter oil droplet (density 900 kg/m^3) is negatively charged with the addition of 30 extra electrons. It is released from rest 2.0 mm from a very wide plane of positive charge, after which it accelerates toward the plane and collides with a speed of 4.1m/s.

What is the surface charge density of the plane.

Express your answer to two significant figures and include the appropriate units.

Reference no: EM132082441

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