Lag1989 task №12.33

Lag1989 task №12.33

Under the action of the field of an infinite charged plane, a point charge q = 7.4 · 10⁻¹⁰C moved along the line of force at a distance L = 3.2 cm. In this case, the work A = 6.1 mkJ was performed. Find the surface charge density σ on the plane.

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