الفيزياء العامة الجزء الثاني#موقع الفيزياء.كوم

Multiple choice question for part 1
b. 7.94 J
c. 14.0 J
d. 34.2 J
[27] The three charges in Figure 7 are at the vertices of an isosceles triangle.
q
4 cm
2 cm
-q
Figure 7
-q
Calculate the electric potential at the midpoint of the base, taking q=7.00 C.
a. -14.2 mV
b. 11.0 mV
c. 14.2 mV
d. -11.0mV
[28] An insulating rod having a linear charge density = 40.0 C/m and linear
mass density 0.100 kg/m is released from rest in a uniform electric field
E=100 V/m directed perpendicular to the rod (Fig. 8).
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