الفيزياء العامة الجزء الثاني#موقع الفيزياء.كوم

Multiple choice question for part 1
0.800 m long if (a) the plane is parallel to the yz plane; (b) the plane is
parallel to the xy plane; (c) the.plane contains the y-axis and its normal
makes an angle of 30.0 o with the x-axis.
a. (a) 900 Nm 2 /C; (b) 0 Nm 2 /C; (c) 779 Nm 2 /C
b. (a) 0 Nm 2 /C; (b) 900 Nm 2 /C; (c) 779 Nm 2 /C
c. (a) 0 Nm 2 /C; (b) 900 Nm 2 /C; (c) 450 Nm 2 /C
d. (a) 900 Nm 2 /C; (b) 0 Nm 2 /C; (c) 450 Nm 2 /C
[13] A conducting spherical shell of radius 13.0 cm carries a net charge of -
7.40 C uniformly distributed on its surface. Find the electric field at
points (a) just outside the shell and (b) inside the shell.
a. (a) (-7.88 mN/C)r; (b) (-7.88 mN/C)r
b. (a) (7.88 mN/C)r; (b) (0 mN/C)r
c. (a) (-3.94 rnN/C)r; (b) (0 mN/C)r
d. (a) (3.94 mN/C)r; (b) (3.94 mN/C)r
[14] A point charge of 0.0562 C is inside a pyramid. Determine the total
electric flux through the surface of the pyramid.
a.1.27 10 3 Nm 2 /C 2
b.6.35 10 3 Nm 2 /C 2
c. 0 Nm 2 /C 2
d. 3.18 10 4 Nm 2 /C 2
[15] A large flat sheet of charge has a charge per unit area of 7.00 C/m 2 .
Find the electric field intensity just above the surface of the sheet, measured
from its midpoint.
a. 7.91 10 5 N/C up
b. 1.98 10 5 N/C up
c. 3.95 10 5 N/C up
d. 1.58 10 6 N/C up
[16] The electric field on the surface of an irregularly shaped conductor
varies from 60.0 kN/C to 24.0 kN/C. Calculate the local surface charge
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