Determine the equivalent capacitance of the combination shown when C = 12 pF.
a.
48 pF
b.
12 pF
c.
24 pF
d.
6.0 pF
e.
59 pF
[Ques. 2] An infinite plane of charge with
is tilted at a 45 angle to the vertical direction as shown below. The potential difference,
VA VB, in volts, between points A and B, a 4.50 m distance apart, is
a.
7.06.
b.
9.98.
c.
14.11.
d.
+7.06.
e.
+9.98.
[Ques. 3] An infinite plane of charge with
is tilted at a 45 angle to the vertical direction as shown below. The potential difference,
VB VA, in volts, between points A and B, a 4.50 m distance apart, is
a.
7.06.
b.
9.98.
c.
14.11.
d.
+7.06.
e.
+9.98.
[Ques. 4] Four electrons move from point A to point B in a uniform electric field as shown below. Rank the electrons in diagrams I through IV by the changes in potential from most positive to most negative when traveling from A to B.
a.
I = II = III = IV.
b.
II = III > I > IV.
c.
III > I = IV > II.
d.
II > I = IV > III.
e.
I > II = III > IV.
[Ques. 5] Four electrons move from point A to point B in a uniform electric field as shown below. Rank the electrons in diagrams I through IV by the changes in potential energy from most positive to most negative when traveling from A to B.
a.
I = II = III = IV.
b.
II = III > I > IV.
c.
III > I = IV > II.
d.
II > I = IV > III.
e.
I > II = III > IV.
[Ques. 6] Can the lines in the figure below be equipotential lines?
a.
No, because there are sharp corners.
b.
No, because they are isolated lines.
c.
Yes, because any lines within a charge distribution are equipotential lines.
d.
Yes, they might be boundary lines of the two surfaces of a conductor.
e.
It is not possible to say without further information.
[Ques. 7] Which of the following represents the equipotential lines of a dipole?
a.
b.
c.
d.
e.
[Ques. 8] Charge of uniform density (3.5 nC/m) is distributed along the circular arc shown. Determine the electric potential (relative to zero at infinity) at point P.
a.
61 V
b.
42 V
c.
52 V
d.
33 V
e.
22 V
[Ques. 9] Point charges q and Q are positioned as shown. If q = +2.0 nC, Q = 2.0 nC, a = 3.0 m, and b = 4.0 m, what is the electric potential difference, VA VB?
a.
8.4 V
b.
6.0 V
c.
7.2 V
d.
4.8 V
e.
0 V
[Ques. 10] If a = 30 cm, b = 20 cm, q = +2.0 nC, and Q = 3.0 nC in the figure, what is the potential difference VA VB?
a.
+60 V
b.
+72 V
c.
+84 V
d.
+96 V
e.
+48 V
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