Question

Two infinitely large plane thin parallel sheets having surface charge densities \(\sigma_1\) and \(\sigma_2\) (\(\sigma_1\) > \(\sigma_2\)) are shown in the figure. Write the magnitudes and directions of the fields in the regions marked II and III.

Answer 1

For region II,

\(E_{II} = \frac{1}{2 \varepsilon_0}(\sigma_1 - \sigma_2)\)

towards right side/from sheet A to sheet B.

Foe region III,

\(E_{III} = \frac{1}{2 \varepsilon_0}(\sigma_1 + \sigma_2)\)

towards right side/away from the two sheets.