الفيزياء العامة الجزء الثاني#موقع الفيزياء.كوم

Lectures in General Physics
6.23) A parallel plate capacitor is
constructed using three different
dielectric materials, as shown in
figure 6.24. (a) Find an expression
for the capacitance in terms of the
plate area A and κ 1 , κ 2 , and κ 3 . (b)
Calculate the capacitance using the
value A=1cm 2 , d=2mm, κ 1 =4.9,
κ 2 =5.6, and κ 3 =2.1.
dd
L
K 2
K 1
L/2
K 3
Figure 6.24
Dd/2
Dr. Hazem Falah Sakeek