What is the work done on the gas as it expands from pressure
P1 and volume
V1 to pressure
P2 and volume
V2 along the indicated straight line?
a.
(
P1 P2)(
V1 V2)/2
b.
(
P1 +
P2)(
V1 V2)
c.
(
P1 +
P2)(
V1 V2)/2
d.
(
P1 P2)(
V1 +
V2)
[Ques. 2] An ideal gas at pressure, volume, and temperature,
P0,
V0, and
T0, respectively, is heated to point A, allowed to expand to point B also at As temperature 2
T0, and then returned to the original condition. The internal energy decreases by 3
P0V0/2 going from point B to point
T0. How much heat left the gas from point B to point
T0?
a.
0
b.
P0V0/2
c.
3
P0V0/2
d.
5
P0V0/2
[Ques. 3] An ideal gas at pressure, volume, and temperature,
P0,
V0, and
T0, respectively, is heated to point A, allowed to expand to point B also at As temperature 2
T0, and then returned to the original condition. The internal energy decreases by 3
P0V0/2 going from point B to point
T0. In going around this cycle once, which quantity equals zero?
a.
the net change in internal energy of the gas
b.
the net work done by the gas
c.
the net heat added to the gas
d.
All three are zero.
[Ques. 4] Consider the curve f(x) = A cos(2x/). The wavelength of the wave will be:
a.
the distance
0 to
A.
b.
twice the distance
0 to
A.
c.
the distance
x2 to
x3.
d.
twice the distance
x2 to
x3.
[Ques. 5] A charge of +2 C is at the origin. When charge Q is placed at 2 m along the positive x axis, the electric field at 2 m along the negative x axis becomes zero. What is the value of Q?
a.
3 C
b.
6 C
c.
7 C
d.
8 C
[Ques. 6] Two charges, +Q and Q, are located two meters apart and there is a point along the line that is equidistant from the two charges as indicated. Which vector best represents the direction of the electric field at that point?
a.
Vector
EA b.
Vector
EB c.
Vector
EC d.
The electric field at that point is zero.
[Ques. 7] If C1 = 30 F, C2 = 25 F, C3 = 15 F, and V0 = 24 V, determine the energy stored by C2.
a.
2.3 mJ
b.
4.8 mJ
c.
3.6 mJ
d.
1.3 mJ
e.
3.2 mJ
[Ques. 8] What is the equivalent capacitance of the combination shown?
a.
24
F
b.
100
F
c.
12
F
d.
4.6
F
[Ques. 9] What is the equivalent capacitance of the combination shown?
a.
29
F
b.
10
F
c.
40
F
d.
25
F
[Ques. 10] If
C = 14
F, what is the equivalent capacitance for the combination shown?
a.
28
F
b.
17
F
c.
0.29
F
d.
7.0
F
e.
670
F
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