39)
FIGURE 2 25  The parallel plate capacitor Rationalised 2023-24
Electrostatic Potential
and Capacitance
69
Outer region II (region below the plate 2),
0
0
0
2
2
E
σ
σ
ε
ε
=
−
=
(2 40)
In the inner region between the plates 1 and 2, the electric fields due
to the two charged plates add up, giving
0
0
0
0
2
2
Q
E
A
σ
σ
σ
ε
ε
ε
ε
=
+
=
=
(2