الفيزياء العامة الجزء الثاني#موقع الفيزياء.كوم

Lectures in General Physics
Chapter 5
5.2) 6.4110 -19 C
5.4) 0.89m
5.5) 2m
5.6) 119nC, 2.67m
5.11) (a) –4500V, (b) same as (a) because
potential is scalar quantity
5.13) (a) 2.510 6 V, (b) 5.1J, and (c) 6.9J
5.15) (a) –386nJ positive binding energy
would have to be put in to separate them.
(b) 103V
Chapter 6
6.1) 18C
6.3) 4.3pF
6.5) (a) q 1 =9C; q 2 =16C; q 3 =9C;
q 4 =16C.
(b) q 1 =8.4C; q 2 =17C; q 3 =11C;
q 4 =14C.
2
1 AV
6.6) (a) V f =2V; (b) U i
,
2 d
2
1 AV
U f =2U i ; (c) W
2 d
6.7) (a) 4.810 -4 C, (b) V 4 =120V; V 6 =80V
6.11) 3300
6.12) (b) 3.2F
6.14) 800pJ, 5.79mJ/m 3
6.16) (a) 4F, (b) 8V; 24C, 4V; 24C,
12V, 24C
6.18) 0.188m 2
6.19) (a) q 1 =2.110 -4 C; q 2 =1.110 -4 C;
q 3 =3.210 -4 C. (b) V 1 =V 2 =21V; V 3 =79V.
(c) U 1 =2.210 -3 J; U 2 =1.110 -3 J;
U 3 =1.310 -3 J;
Chapter 7
7.1) (a) 1.210 3 C, (b) 7.510 21 electron
7.2) 1.510 -15 m/s
7.6) 3.2310 6 /.m
7.9) (a) 2.4 iron being larger, (b) no
7.10) 6.43A
7.12) 210 6 s
7.13) (a) 15V copper; 85V iron, (b)
8.510 7 A/m 2 , (c) 1.5V/m copper; 8.5V/m
iron
7.18) (a) 11A, (b) 11 and (c) 1100kcal
Chapter 8
8.1) 7.67
8.3) (a) 1.79A, (b) 10.4V
8.5) 12
8.7) 2.4
8.9) 8
8.10) (a) 27.3V, (b) 2.73A; 1.37A; 0.91A
8.11) (b) 1.99A; 1.17A; 0.819
8.12) (6/11)R
8.13) 14W; 28.5W; 1.33W; 4w
8.17) i 1 =50mA to the right; i 2 =60mA
down; V ab =9V
8.18) (a) the left branch, 0.67A down;
center branch, 0.33A up; the right branch,
0.33A up
8.19) (a) -10.4V
Dr. Hazem Falah Sakeek 245