phy 2 lab 3

.pdf

School

University of Florida *

*We aren’t endorsed by this school

Course

2049L

Subject

Electrical Engineering

Date

Jun 5, 2024

Type

pdf

Pages

Uploaded by kaitlinh1212

2. Write down the formulas for the equivalent resistances R, R,, R., R;, R in row #3 of Table 1. 3. CalculateR,, Ry, R.,R;, R '+ using the formula in row #3, record the calculated values in row #4 of Table 1. Table 1 Resistances (K ) from Measurement #1 R | R | Ry R, R, R, R, R, R, R, measured resstanee () 12191 0.% | 046/ 0.9 317 | (1.66] 0.50| 462 | 347 |0 97 fonpula of ‘ A 4 +p _é_ - equivalent " . - . Q‘ 4R Yal L R+ R R, 4 ( resistance Req ! (Q\*Q,_\ p|{zl Q * ﬂ;:& "'(g*“"; +é3 " calculated equivalent _ . " . ) l"] A L2 resistance Req ?’ OQ(K 2 50 4 C ?)4q (').qo‘ Note: R,, refersto eachof R,, R,, R.R,,R.R, inTablel. Questions on Measurement #1: Are the calculated values in row #4 in agreement with the measured values in row #2 of Table 1? Yes , ‘“"@‘j axe |n agreement with each pther. Caution: Turn off the power supply before you make connections. Don’t let the two output terminals of the power supply touch each other anytime. Measurement #2: Use Voltmeter to measure dc voltages across the elements in Fig. 2 1. Check that the DC power supply is off. Connect the circuit shown in Fig. 2. - 2. Turn on the power supply and measure the voltages: (a) V) across R, ; (b) ¥, across R, ; (c) V5 across the power supply. Voltmeter 3. Record the measured data in Table 2. 4. Turn off the power supply. Table 2 Voltages from Measurement #2 n @ v, () Ve (V) 2. 55 | 0 S. /50 Figure 2 Measure V|, V,, V Questions on Measurement #2: In Table 2,is V] =V, =V ? Why? IsV1+V2—VS‘7Why? Todo _Je becouse v+ s insenes oumd Hae voliage led Vi+V,=Vs olvops Past each vesistor within the crut. Measurement #3: Use Ammeter to measure dc current through the loop in Fig. 3 1. Check that the DC power supply is off. Connect the circuit shown in Fig. 3 2. Turn on the power supply to measure the current through the loop, record it in Table 3. Vs 3. Turmn off the power supply. Ammeter —L Figure 3 Measure current /. 26

Table 3 Current through the loop from Measurement #3 Ve (V) I (mA) 'S_-/SS /‘63 Questions on Measurement #3: (a) Can you connect the ammeter between R, & R, to measure the current through the loop in Fig. 3? (b) What value of the current do you expect to get? Why? (€S Yo Can connect ‘he ammetey petween R, k& Thevaluwe expededis T- Y - 5155 ) 630 R 2.9+0.9¢% Measurement #4: Use Voltmeter to measure dc voltages across the elements in Fig. 4 1. Check that the DC power supply is off. Connect the circuit shown in Fig 4. 2. Tumn on the power supply, measure the following voltages: (a) V, acrossR;; (b) ¥, across R, ; (c) Vg across the power supply 3. Record the measured voltages in Table 4. 4. Turn off the power supply. f ;i Voltmeter Table 4 Voltages from Measurement #4 R no v @) Vs ) ‘ = M T (%5 <. 55 S.155 VS—-L_ 7, Questions on Measurement #4: = In Table 4,is V] + ¥, =V 22 Why? Is ¥ =V, =V ? Why? Figure 4. Measure 1, V,, Vg V,=V2 o Vs becouse YL ciramt s in poaliel omot vhe VoLt € obeops QLCYDsS +he resistors avk the some ond = 4o e wltnge oF +ne sourvce. Measurement #5: Use Ammeter to measure dc current through the loop in Fig. 5 1. Check that the DC power supply is off. Connect the circuit shown in Fig. 5. 2. Turn on the power supply, measure the following currents: (a) I, through R;, (b) I through Ry, (c) I through the power supply. 3. Record your data in Table 5. Ammeter 4. Turn off the power supply. R E @ - Table 5 Currents from Measurement #5 — ! 1, (mA) I, (mA) Ig (mA) o Mfi}/\ _l S 306 $¢ 2.9 L Questions on Measurement #5: Figure 5 Measure /,,1,, I InTable S, is [, =1, =1g? Why? Is I;+1,=15? Why? T,+T,=1, Since We Civeut © (N senes | V=V + vy eV, ok V= TR applying Hae Soume wreond to e carvent of & Cvoud N SOAES. .

Measurement #6: use voltmeter and ammeter to measure dc voltage and current in Fig. 6 1. Turn off the DC power supply, connect the circuit shown in Fig. 6. DMMI —)NXV\-— 1 2 R,z 2.mM ’_®_’)MM_ Is R Lsww | ' R, =097 A\ Is R RS Vi @DMMZ Az =040 Q‘f - 0.9¢ "= Figure 6 Measure Ve, Vo, Vi Vy and I, 1y 1o, 1, 1y, 2. Turn on the DC power supply. . Use DMM2 to measure the voltages Vg, 1, V3, V3, ¥, » tecord them in Table 6. 3 4. Use DMMI to measure the current /g, I,, I,, I, 1, record them in Table 6. 5. Turn off the DC power supply. 6 0__.&__?0/9 . Use relevant formulas (in Theory of Experiment 2) to calculate the voltages ¥, ¥, V3,V and currents 144 - O I, 1, I, I, 1,.using V=5V and the values of Ry, Rz, Rs, Ry in Table 1. Record all the calculated data ) in Table 6. 3.4%3 Table 6 Measured and calculated voltages and currents Measured data Calculated data Vs (V) S. 56 Use Vg =5V ]_—5 SR, — n 3,25 2.122 T R s v, ) 0.4 6% 0. 9443 el v, @) 0.46€ 0.9%3 Tg Ry, —> v, 1) |- 452 /4014 > Rsxﬂz) 2% i “ 47 L 42 Pl R 1, (md) .47 143 = I, (mA) 097 0.45 =5 7, () 0.99 0.94 3 1, (mA) .47 (.43 v [ Questions on Measurement #6: Do the calculated values agree with the measured values in Table 67 yes ‘Mf\elj olo - Work to be done: 1. Check that the DC power is off. 2. You may tear those pages containing the raw data Tables out of the lab manual and used them as parts of your lab report. Let your TA check your raw data Tables. If they are OK, your TA will sign them. Clean up your bench. P 28

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version

Access to all documents
Unlimited textbook solutions
24/7 expert homework help

Recommended textbooks for you

Introductory Circuit Analysis (13th Edition)

Electrical Engineering

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:PEARSON

Delmar's Standard Textbook Of Electricity

Electrical Engineering

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Cengage Learning

Programmable Logic Controllers

Electrical Engineering

ISBN:9780073373843

Author:Frank D. Petruzella

Publisher:McGraw-Hill Education

Fundamentals of Electric Circuits

Electrical Engineering

ISBN:9780078028229

Author:Charles K Alexander, Matthew Sadiku

Publisher:McGraw-Hill Education

Electric Circuits. (11th Edition)

Electrical Engineering

ISBN:9780134746968

Author:James W. Nilsson, Susan Riedel

Publisher:PEARSON

Engineering Electromagnetics

Electrical Engineering

ISBN:9780078028151

Author:Hayt, William H. (william Hart), Jr, BUCK, John A.

Publisher:Mcgraw-hill Education,

SEE MORE TEXTBOOKS

Recommended textbooks for you

Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:PEARSON
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning
Programmable Logic Controllers
Electrical Engineering
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:9780078028229
Author:Charles K Alexander, Matthew Sadiku
Publisher:McGraw-Hill Education
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:9780134746968
Author:James W. Nilsson, Susan Riedel
Publisher:PEARSON
Engineering Electromagnetics
Electrical Engineering
ISBN:9780078028151
Author:Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:Mcgraw-hill Education,