Given:
- \(E = 2200 \, \text{N/C}\),
- The side length of the square surface is \(3.5 \, \text{mm} = 3.5 \times 10^{-3} \, \text{m}\),
- \(\theta = 35^\circ\).
First, calculate the area \(A\) of the square surface:
\[
A = \text{side}^2 = (3.5 \times 10^{-3} \,
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