الفيزياء العامة الجزء الثاني#موقع الفيزياء.كوم

Lectures in General Physics
b. 2.31 F
c. 4.29 F
d. 13.0 F
[11] Four capacitors are connected as shown in Figure 4.
19uF
5uF
a
6uF
24uF
Ab
Figure 4
(a) Find the equivalent capacitance between points a and b. (b) Calculate the
charge on each capacitor if V ab = 11.0 V.
a. (a) 28.8 F; (b) q 19 = 1254, q 5 = 330, q 6 = 396, q 24 = 317
b. (a) 7.04 F; (b) q 19 = 30.8, q 5 = 30.8, q 6 = 46.7, q 24 = 77.4
c. (a) 28.8 F; (b) q 19 = 1584, q 5 = 1584, q 6 = 396, q 24 = 317
d. (a) 7.04 F; (b) q 19 = 148, q 5 = 38.9, q 6 = 46.7, q 24 = 77.4
[12] A 40.0F spherical capacitor is composed of two metal spheres one
having a radius four times as large as the other. If the region between the
spheres is a vacuum, determine the volume of this region.
a. 5.18 10 18 m 3
b. 1.46 10 13 m 3
c. 1.37 10 13 m 3
d. 5.26 10 18 m 3
[13] A 18.0 m metal wire is cut into five equal pieces that are then connected
side by side to form a new wire the length of which is equal to one-fifth the
original length. What is the resistance of this new wire?
a. 90.0
b. 3.60
c. 0.720
d. 19.0
Dr. Hazem Falah Sakeek 223