$[2/3$ Points$]$

OSCOLPHYS$201619\mathrm{.}2.$WA$\mathrm{.}018.$

In the diagram below, each division on the horizontal axis is $0\mathrm{.}20$ m while each division on the vertical axis is $1\mathrm{.}5$ V $.$ What is the electric field in each of the regions specified below?

E$]$

$($a$)$ from $0\mathrm{.}0$ m to $0\mathrm{.}30$ m

$$ v$/$m

$($b$)$ from $0\mathrm{.}30$ m to $0\mathrm{.}70$ m

Does the graph in this region have a positive or negative slope?V$/$m

$($c$)$ from $0\mathrm{.}70$ m to $0\mathrm{.}80$ m

$\frac{V}{m}$