22. 3.7E
The electric field in region \( B \) is:
\( -\frac{\sigma}{\epsilon_{0}} \)
\( -\frac{\sigma}{2 \epsilon_{o}} \)
0
\( +\frac{\sigma}{2 \epsilon_{o}} \)
\( +\frac{\sigma}{\epsilon_{0}} \)
23. 3.7F
The electric field in region \( C \) is:
\( -\frac{\sigma}{\epsilon_{0}} \)
\( -\frac{\sigma}{2 \epsilon_{o}} \)
0
\( +\frac{\sigma}{2 \epsilon_{o}} \)
\( +\frac{\sigma}{\epsilon_{0}} \)