1
Q5 A long cylindrical rod radius a carries a charge q
EE 311 Mid-Term Exam 1
per unit length, uniformly distributed throughout
the rod. What is the magnitude of the electric
ux density at a point P a distance from the
center of the rod? Note that < a.
A
1
32 sin(3)az
3 cos(3)az
none of these
C.
D.
E.
Q6 Given that C is a constant and
EE 311 Review Quiz R1
C
a
in cylindrical polar co-ordinates, what is
at a point where = a, a = 0?
A=
January 22th 2015 10.00 AM
Time allowed: 30 minutes.
Answer ALL question
Electromagnetic Fields and Waves
EE 311
John R. Bowler
Electrical and Computer Engineering
Iowa State University
Center for Nondestructive Evaluation
E-mail [email protected]
January 12th 2015
John R. Bowler (ISU)
Lecture 1
Spring 2015
1 / 27
Outline
1
1
Q5 An electric charge of 1 Coulomb ows onto the
EE 311 Mid Term Exam 3
Time allowed: 45 minutes.
Answer ALL questions.
Fill in the answer sheet attached.
Q1 A circular loop of radius a is inside and coaxial
with an air lled solenoid with n turns per uni
1
E. some other value
Q5 A horizontally directed charged particle beam
EE 311 Mid Term Exam 2
Time allowed: 45 minutes.
Answer ALL questions.
Fill in the answer sheet attached.
Q1 The current density in a circular rod is J, what
is the magnetic eld in the
1
Q5 A plane wave in medium 1 (air in the region
z < 0) is incident on an interface with medium
2 (z > 0) at the plane z = 0. The electric eld
phasor in medium 1 is given by
EE 311 Graded Quiz 2
Tim e allowed: 30 minutes.
Answer ALL questions.
Fill in the
Introduction to Transmission line
EE311
Page 1
Transient Issues:
1. We know how to derive the coupled wave equations for V and I. For the lossless
case we have:
V LI
I CV
and
=
=
z
t
z
t
Please note that V = V(z,t) and I = I(z,t)
2. We can decouple these
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Steady currents
H and B
, Stationary charges
E and D
Sources
Fields
Constitutive parameter(s)
Governing equatio
(a) Zone coverage
I uividual spot
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Individual transmitters
and horn antennas
a
N7
(b) Multiple spot beams
Application Examples
101 Satellite Communication Systems
10-2 Satellite Transponders
106 CommunicationLink Power Budget
PROBLEMS % 25
1.1 Find the unit vector along the line joining point (2, 4, 4) to point (3, 2, 2).
om
L2 Let A = 2a;r + Say Baa, B = 3a, 4a, and C = ax + ay + 31. (a) Determine
A + 23. (b) Calculate |A a 5C]. (c) For what values of k is [kBl = 2? (1) F
TECHNOLOGY BRIEF: GLOBAL POSITIONING SYSTEM 43
42" . -. _ _TECHNOLOGY BRIEFi-G-LOBAL'POSITtoNtNG SYSTEM
to travel time over the distance all. A similar process
applies to sateilites 2 to 4, leading to four equations:
7" (x1 x0)2 + 0: * yo)2 + (21
The Complete Smith Chart
Black Magic Design
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Introduction to Transmission line Steady state
Page 1
How about Steady-State (Phasor Form) for T-lines
d
V z ( j LI RI ) ( j L R) I z
dz
d
I z (G jC )V z
dz
These are the
General Coupled
Telegraphy
Equations in
PHASOR Form
*In here I z and V z are phasors
X
1.27: (mV/m) \
4|
*y_l_ 10 (HAfm) 0 II"
E
Plane-Wave
Propagation
Unbounded EM Waves
71 TimeHarmonic Fields
7-2 Plane-WaVe Propagation in Lossless Media
73 Wave Polarization
7-4 Plane-Wave Propagation in Lossy Media
75 Current
150
if ifin a Danish engineer, invented
magnetic recording by demonstrating in 1900 that
speech can be recorded on a thin steel wire with a
simple , . Magnetic tapes were devel-
oped as an alternative medium to wires in the 19403
and became very popular
EE 311
Introduction to Electromagnetism
Vectors
Vectors
Definition
A vector is an entity that has magnitude and direction.
A scalar is an entity that has a magnitude. For example Electric potential in volts is a
scale. So is temperature at a point in the
1
c : Iowa State University
EE311 Quiz R6
April 27th 2017 10.00 AM
Time allowed: 45 minutes.
Answer ALL questions.
Fill in the answer sheet attached.
Q.5 A lossless transmission line is
Take the speed of light to be c = 300, 000, 000 m/s
Q.1 The plane wav
1
Q5 What is rV n ?
EE 311 Graded Quiz G1
February 9th 2017 10.00 AM
Time allowed: 30 minutes.
Answer ALL questions.
A.
B.
C.
D.
E.
Q1 Let P = 2ax
6ay + 5az and
Q = 3ay + az. What is P Q?
0
B.
2ax
18ay + 6az
C.
21ax + 2ay + 6az
D.
21ax
E.
c) = a b
ac
D. a
1
Q4 A coaxial cable carries a charge on the inner
EE 311 Mid Term Exam 1
February 16th 2017 10.00 AM
core, radius a, having a surface charge density
S . The outer sleeve has an inner radius 2a. What
is the surface charge density on the inner surface
of t
1
Q.5 An electric charge of 1 Coulomb flows onto the upper
EE 311 Mid Term Exam 3
April 6th 2017 10.00 AM
Time allowed: 50 minutes.
plate of a parallel plate capacitor while 1 Coulombs
flows off the lower plate. This takes 5 seconds. The
area of the plate
1
C. 2 Amps
D. 4 Amps
E. none of these
EE 311 Graded Quiz G2
March 2nd 2017 10.00 AM
Time allowed: 40 minutes.
Answer ALL questions.
Q5 The square loop has dimensions a a, carries a
Fill in the answer sheet attached.
Permeability of free space: 0 = 4 10
7