In the figure below, an electron is released between two infinite nonconducting

Question

In the figure below, an electron is released between two infinite nonconducting sheets that are horizontal and have uniform surface charge densities sigma_(+) and sigma_(-), as indicated. The electron is subjected to the following three situations involving surface charge densities and sheet separations. Rank the magnitudes of the electron's acceleration, greatest first (use only the symbols > or =, for example 2>3=1). In the figure below, short sections of two very long parallel lines of charge are shown, fixed in place and separated by L = 7.0 cm. The uniform linear charge densities are

Explanation / Answer

The field due to a infinite charge plate = /(2*0) . Field is constant and does not depend on separation distance

so for 1 E = 5.5/0

for 2 E = 2.5/0

for 3 E = 2.5/0

So order is 1>2=3

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