Problem 4.36 For each of the distributions of the electric potential V shown in
Fig. P4.36, sketch the corresponding distribution of E (in all cases, the vertical axis
is in volts and the horizontal axis is in meters).
Solution:
V
30
3
5
8
11 13
16
x
−30
E
10
x
−10
(a)
V
4
3
6
9
12
15
x
−4
E
4.20
x
3
6
9
−4.20
(b)
12
15
V
4
3
6
9
12
15
9
12
15
x
−4
E
2.6
3
6
x
−2.6
(c)
Figure P4.36: Electric potential and corresponding electric field distributions of
Problem 4.36.