Student Protocol
Electromyography
In this experiment, you will explore the electrical activity of skeletal muscle by recording an electromyogram
(EMG) from a volunteer. You will examine the EMG of both voluntary and evoked muscle action and attempt to
mea
Tufts University
School of Engineering
Department of Electrical and Computer Engineering
ES3 - Introduction to Electrical Circuits
Fall 2007 Lab Section: Tuesday 2:30 4:30 Experiment 5 Interfacing Circuits to Computers:
Analog-to-Digital Conversion
Tufts University
School of Engineering
Department of Electrical and Computer Engineering
ES3 - Introduction to Electrical Circuits
Fall 2007 Lab Section: Tuesday 2:30 4:30 Experiment 4 Amplification, Impedance, and Frequency Response
Name: Submitt
Tufts University
School of Engineering
Department of Electrical and Computer Engineering
ES3 - Introduction to Electrical Circuits
Fall 2007 Lab Section: Tuesday 2:30 4:30
(I did a make up lab on Friday, October 26 instead of my normal Tuesday sect
Tufts University
School of Engineering
Department of Electrical and Computer Engineering
ES3 - Introduction to Electrical Circuits
Fall 2007 Lab Section: Tuesday 2:30 4:30
Experiment 2 Measurement of Time-Varying Signals
Name: Submitted to: Exper
Tufts University
School of Engineering
Department of Electrical and Computer Engineering
ES3 - Introduction to Electrical Circuits
Fall 2007 Lab Section: Tuesday 2:30 4:30
Experiment 1 DC Measurements
Name: Submitted to: Experiment Performed: Exp
CHAPTER 11
Solutions for Exercises
E11.1 (a) A noninverting amplifier has positive gain. Thus v o (t ) Avv i (t ) 50v i (t ) 5.0 sin(2000 t ) (b) An inverting amplifier has negative gain. Thus v o (t ) A v i (t ) 50v i (t ) 5.0 sin( 2000 t ) v E11.2
CHAPTER 7
Solutions for Exercises
E7.1 (a) For the whole part, we have: Quotient Remainders 23/2 11 1 11/2 5 1 5/2 2 1 2/2 1 0 1/2 0 1 Reading the remainders in reverse order, we obtain: 2310 = 101112 For the fractional part we have 2 0.75 = 1 + 0.5
CHAPTER 6
Solutions for Exercises
E6.1 (a) The frequency of v i n (t ) frequency H (f )
2 cos(2
2000t ) is 2000 Hz. For this
2 60 . Thus, Vout
and we have v out (t ) frequency H (f ) v out (t ) 0. E6.2
4 cos(2
2000t cos(2
H (f )Vn i
60 ). 30
CHAPTER 5
Exercises
E5.1 (a) We are given v (t )
150 cos(200 t 30 ) . The angular frequency is
the coefficient of t so we have 200 f /2 100 Hz T 1 /f Vrms Vm / 2 150 / 2 106.1 V
radian/s . Then 10 ms
Furthermore, v(t) attains a positive peak when
CHAPTER 4
Solutions for Exercises
E4.1 The voltage across the circuit is given by Equation 4.8: v C (t ) Vi exp( t / RC )
in which Vi is the initial voltage. A t the time t1% for which the voltage reaches 1% of the initial value, we have 0.01 exp( t
CHAPTER 3
Solutions for Exercises
E3.1
v (t )
q (t ) / C 10 6 sin(105t ) /(2 10 6 ) 0.5 sin(105t ) V dv i (t ) C (2 10 6 )(0.5 105 ) cos(105t ) 0.1 cos(105t ) A dt
E3.2
Because the capacitor voltage is zero at t = 0, the charge on the capacitor i
CHAPTER 2
Solutions for Exercises
E2.1 (a) R2, R3, and R4 are in parallel. Furthermore R1 is in series with the combination of the other resistors. Thus we have: 1 Req R1 3 1 / R2 1 / R3 1 / R4 (b) R3 and R4 are in parallel. Furthermore, R2 is in ser
CHAPTER 1
Solutions for Exercises
E1.1 E1.2 E1.3 Charge = Current Time = (2 A) (10 s) = 20 C
0.01 200cos(200t ) 2cos(200t ) A
i (t )
dq (t ) dt
d (0.01sin(20 0t) dt
Because i2 has a positive value, positive charge moves in the same direction as t
Polarization, polarizers and polarization experiment, solid angle Here is, I hope, a better, more intuitive explanation for what is going on when we pass light through polarizer and why we are able to get some light through three polarizers, even whe
April 23, 2007 Dr. Gleam, May All Your Problems Be Light, LLC. 345 Light Way
Dear President Gleam, In response to your request for a new illuminating product, I am submitting several files of drawings of one of my designs for a desk lamp. I am sendi
En2 project 24" bounds put bulb in first to see how much space you really have use LOFT to turn cross sectional pieces into a 3d object turn off everything but osnap take cross sections and hatch them use layers and viewports and freeze for that view
TC Neuhs
ES2- Sec I Homework #7
3/27/2008
Lab 7 Homework Parachutist Fall Parameter Mass Drag Coefficiant Acceleration of Gravity Time Rip Cord Pulled Injury Velocity e Velocity Symbol m cd g t vcrit e v Value 70 12.7 9.8 10 65 2.718 45.212 Unit k
TC Neuhs A B C 1 H6.2 2 Solving Simotanious Linear Equations 3 Fa Fb Fc 4 -0.874 0.633 5 0 -0.719 6 0.486 0.288 D
ES2- SEC I Homework #6 E F G
3/27/2008
Const. 0.534 0.785 0.314 0 Fa 0 Fb 500 Fc 535.1419 416.8191 381.7744
cf720d0572baa3fdbcdb2a34