PROBLEM 3.13
KNOWN: Composite wall of a house with prescribed convection processes at inner and
outer surfaces.
FIND: (a) Expression for thermal resistance of house wall, R tot ; (b) Total heat loss, q(W); (c)
Effect on heat loss due to increase in outsid
Experiment 6: Network Theorems
Part 2
Objective:
This lab experiment is meant to improve our ability to calculate and understand each
element in an electrical circuit as we physically apply them.
Theory:
Source transformations are used to transform a circ
Experiment 6: Network Theorems
Theory:
The Thevenin's Theorem is a process by which a complex circuit is reduced to an
equivalent series circuit consisting of a single voltage source, VTH, a series resistance, RTH, and a
load resistance, RL. After creatin
ECE 3300
EXPERIMENT TITLE AND #
DATE OF EXPERIMENT
VINCENT MAURO
ES8817
INTRODUCTION
State the objective, Theory, Equipments and Procedure of the experiment.
EXPERIMENTAL RESULTS
Various measurements are typically made in a given experiment. In this secti
ECE 3300 Introduction to
Electrical Circuits
Chapter 7
Energy Storage
Lubna Alazzawi
Electrical and Computer Engineering
Capacitors and Inductors: Introduction
Two important passive linear circuit elements:
2
Capacitors
A capacitor is a circuit element t
ECE 3300 Introduction to
Electrical Circuits
Chapter 5: Circuit Theorems
Lubna Alazzawi
Electrical and Computer Engineering
1
Introduction
Many complex electric circuits can be reduced in complexity before
applying the analysis techniques to them.
Large a
ECE 3300 Introduction to
Electrical Circuits
Chapter 9: RLC Circuit
Lubna Alazzawi
Electrical and Computer Engineering
1
Preview
In this chapter, we proceed to determine the complete response of
the second-order circuit.
A second-order circuit is a circ
ECE 3300 Introduction to
Electrical Circuits
Chapter 6:
Operational Amplifier
Lubna Alazzawi
Electrical and Computer Engineering
1
Preview
2
What is Operational Amplifier
The operational amplifier (op amp) is an element with a
high-gain ratio designed to
Problem 1
sum = 0;
k = 1;
while sum < 10000
k=k+1;
sum = 5*k +k^3 +sum
end
0isp('Number of terms:')
0isp(k)
0isp('Sum')
0isp(sum)
Problem 2
Tf=32:3.6:82.4;
Tc=5/9*(Tf-32);
p=(5.5289*10^-8*Tc.^3)-(8.5016*10^-6*Tc.^2)+(6.5622*10^-5*Tc)+.99987;
plot(p,Tc)
xl
ECE 3300
Homework #2
HW 2.4.6 Assume is=25mA. R1=4 and R2=8 , Calculate the voltage across each resistor and the power
absorbed by each resistor.
v 1=R1 i1 =4 25 103
v 1=100 mV
v 2=R2 i 2=8 25 103
v 2=200 mV
3 2
2
p1=i 1 R1 =( 25 10 ) 4
6
625 10 4
2500
PROBLEM 3.116
KNOWN: Thermal conductivity, diameter and length of a wire which is annealed by passing an
electrical current through the wire.
FIND: (a) Steady-state temperature distribution along wire, (b) Maximum wire temperature, (c)
Average wire temper
PROBLEM 3.111
KNOWN: Surface conditions and thickness of a solar collector absorber plate. Temperature of
working fluid.
FIND: (a) Differential equation which governs plate temperature distribution, (b) Form of the
temperature distribution.
SCHEMATIC:
ASS
PROBLEM 6.2
KNOWN: Form of the velocity and temperature profiles for flow over a surface.
FIND: Expressions for the friction and convection coefficients.
SCHEMATIC:
ANALYSIS: The shear stress at the wall is
s =
u
=
y y=0
A + 2By 3Cy 2
y=0 = A .
Henc
Special Lecture A
Fluid Dynamics Review
A.1. Classification of Fluid Flows
In heat convection, the transfer of heat is carried out by the motion of a fluid; e.g., water,
air, etc. Furthermore, the rate of heat transfer depends on the type of flow regime.
Lecture #06
Chapter 6
Introduction to Heat Convection
6.1. Velocity (or Momentum) Boundary Layer
1. [6.1.1] Boundary Layer (B.L.) is defined to exist near the wall where the flow is
sheared. The effect of viscosity causes the flow to be retarded and reach
PROBLEM 1.13
KNOWN: Masonry wall of known thermal conductivity has a heat rate which is 80% of that
through a composite wall of prescribed thermal conductivity and thickness.
FIND: Thickness of masonry wall.
SCHEMATIC:
ASSUMPTIONS: (1) Both walls subjecte
PROBLEM 6.5
KNOWN: Variation of hx with x for laminar flow over a flat plate.
FIND: Ratio of average coefficient, h x , to local coefficient, hx, at x.
SCHEMATIC:
ANALYSIS: The average value of hx between 0 and x is
1 x
C x
h x dx = x -1/2dx
x 0
x 0
C 1/
NAMD Tutorials
BME 3910
Anita Edwards
Introduction:
NAMD:
What is Needed:
In order to run any MD simulation, NAMD requires at least four things:
1. A Protein Data Bank (pdb) file which stores the atomic coordinates and/or velocities for
the system. These
HW Chapter 2
1
HW 2.4.6 Assume is=25mA. R1=4 and R2=8 , Calculate the voltage
across each resistor and the power absorbed by each resistor.
ANS: V1=-0.1V P1=2.5mW, v2=0.2V,
P2=5mW
HW 2.5.1 Suppose vs=15V, is=3A, and R=5, (a) Calculate the current i in
the
ECE 3300 Introduction to
Electrical Circuits
Chapter 8
The Complete Response of RL and
RC Circuits
Lubna Alazzawi
Electrical and Computer Engineering
1
Introduction
Circuits that contain energy storage elements are solved using
differential equations.
T
ECE 3300 Introduction to
Electrical Circuits
Chapter 4: Methods of Analysis of
Resistive Circuit
Lubna Alazzawi
Electrical and Computer Engineering
1
Preview
Familiar circuit elements
Independent and dependent current sources
Independent and dependent
Definition of Electrical and Electronics Engineering
Electrical and Electronics Engineers are responsible for a very wide range of
technologies. Electrical and electronics engineers develop and design new devices and
technologies; also, they supervise the
ECE 3300 Fall 2003
Name:_
Prof. Mohamad Hassoun, WSU
Quiz # 11 (20 minutes. Max score = 10)
Open Book
Consider the circuit shown.
1. Find i1(0+) and d i1(0+) /dt.
2. Derive the differential equation for i1(t) , t > 0.
3. Find the inductor currents at t =
ECE 3300 Fall 2003
Name:_
Prof. Mohamad Hassoun, WSU
Quiz # 10 (20 minutes. Max score = 10)
Open Book
Consider the circuit shown. Assume the switch has been closed for a long time before it
opens at t = 0.
(2 points)
1. Find vc(0+).
2. Consider the circui
ECE 3300 Fall 2003
Prof. Mohamad Hassoun, WSU
Quiz # 9 (15 minutes. Max score = 10)
Name:_
Closed Book!
I.
(5 points) Find the current i(t) in the following circuit. Also, find the energy stored
in the 2 F capacitor at t = 0.
II.
(5 points) The switch in
ECE 3300 Fall 2003
Name:_
Prof. Mohamad Hassoun, WSU
Quiz # 8
(15 minutes. Max score = 10)
OPEN BOOK!
I.
(5 points) Find vo by direct analysis (i.e., employing nodal or mesh analysis).
[Alternatively, a quick solution can be arrived at by noting that the