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A flat surface of dimensions 2 m by 2 m that is given a total charge...

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Physics

A flat surface of dimensions 2 m by 2 m that is given a totalcharge of 400 μC uniformly distributed over the surface, and wherea point charge +4 μC is fixed a distance 2 cm above the centre ofthe charged surface. A second point charge +16 nC, with mass 10 g,is placed at rest directly above the first point charge, at adistance 2 cm from the first point charge. The second point chargeis released and accelerates directly away from the first pointcharge and charged surface. After some time, the second pointcharge is a distance 3.4 cm from the first point charge. What isthe speed of the second point charge at this time?

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3.6 Ratings (271 Votes)
The electric field due to a flat surfacewhere is the surface charge    See Answer
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