Physics 2120 Quiz #4
Name _
y (m)
2
A
B
I
1
1
-1
2
3
4
5
C
6
x (m)
The loop illustrated above lies in the x-y plane and has a current of 12.0 A flowing
clockwise around it. The strength of the magnetic field is 2.5 T and the units of distance
are in meter
The problems on this exam are of varying difficulty. If you get stuck on one
problem, move on to the next one. You can always come back. The point value is given
for each of the problems. Some of the problems depend on results from the previous step.
If y
The problems on this exam are of varying difculty. If you get stuck on one
problem, move on to the next one. You can always come back. The point value is given
for each of the problems. Some of the problems depend on results from the previous step.
If you
The problems on this exam are of varying difculty. If you get stuck on one
problem, move on to the next one- You can always come back. The point value is given
for each of the problems. Some of the problems depend on results from the previous step.
If you
PHYS 2120 - Homework #1
Name_
As illustrated in the diagram, a non-conducting rod extends from x = 4 m to 0 m.
The charge per length, (x), on this rod is a function of position. This functional
dependence gives us the relationship ( x) = 4.0( x 3.0) C / m
PHYS 2120 - Quiz #1
Name _
water = 1. 00 103 kg / m3
Pa = 1. 013 105 N / m2
Hoover Dam
Water
A scuba diver decides to explore the
structural integrity of Hoover Dam from
the water side. As he descends the
water side of the dam, he notices the
depth gauge
Physics 2120 Quiz #5
A loop with radius 37 cm lies in the x-y
plane and is located within a magnetic
field as indicated on the diagram to the
right. At t = 0 s, the magnetic field is
B 2.5 k T . If the magnetic field were
to change linearly so that B 1.5
PHYS 2120 Quiz 1
1.
Name _
What is the magnitude and angle of the electric field at P, location (3,0), due to
the presence of the +8 C and 6 C charges? (The units for distance on the
graph is in meters.) (8 pts)
k 8.99 10 9 N m 2 / C 2
4
3
6.0 C
2
1
-4
-3
PHYS 2120 Quiz 1
1.
Name _
What is the magnitude and angle of the electric field at location (3,2) due to the
presence of the 9 C and 6 C charges? (The units for distance on the graph is
in meters.) (8 pts)
4
3
2
P
6.0 C
1
-4
-3
-2
-1
1
2
3
4
-1
-2
-9.0 C
Physics 2120 Quiz #4
Name _
20cm
The loop illustrated to the right has a current of 18.0 A
flowing clockwise in it. This loop is embedded in a
magnetic field of B 1.20 j T .
a)
8cm
A
B
y
I
What is the force exerted on line segment AB?
(Give both a magnitu
General Physics II Quiz #6
Name _
Halos on other worlds
(See http:/www.atoptics.co.uk/halo/oworld.htm and Light
Scattering from Ammonia and Water Crystals, Alan Holmes,
PhD dissertation 1981, University of Arizona)
Jupiter and Saturn have a significant am
PHYS 2120 Quiz 3
Name _
S
+ + +
C
R
A 3.00 mF capacitor is initially charged to a voltage of 25 V. It is placed in a circuit with
a switch and a 200 resistor. At t = 0 s, the switch is closed. From this time forward
the charge on the capacitor is given
Physics 2120 Quiz #5
Name _
y
+a
x
b
A single square loop with sides of 30 cm lies in the x-y plane and is located within a
magnetic field as indicated on the diagram above. Initially (t = 0s) the strength of the
magnetic field is 230 mT.
a) What is the f
PHYS 2120 Quiz 3
Name _
Box # _
R = 15
The charge in an AC resistive circuit is given by the function
Q(t ) A cos( t )
where A = 0.075 C, = 377 rad/s, and = /4 rad.
A)
I
B)
What is the function of current in the circuit?
dQ d A cos( t )
A sin( t )
dt
dt
General Physics II Quiz #2
A
6.00 F
Name_
18.00 F
B
12.00 F
A)
What is the value of a single capacitor that has the same capacitive effect as the
combination of capacitors illustrated above? (6 pts)
First combine the 18 and 12 F capacitors in parallel.
CP
PHYS 2120 Exam #3
Name SM!
The problems on this exam are of varying difculty. If you get stuck on one
problem, move on to the next one. You can always come back. The point value is given
for each of the problems. Some of the problems depend on result