Engr 250 - Electric Circuits

Engr 250 - Electric Circuits

Engr 250L - Electric Circuits Lab

Engineering Dept, Santa Ana College
Spring 2024

lab

COURSE INFO

ANNOUNCEMENTS, HANDOUTS

  • Exam 3 in week 16 (both 250 & 250L)!

    Lecture exam conditions: CLOSED book and notes, comprehensive but focused on topics indicated above, one 2-sided 8.5x11" "tip" sheet ok)
    - details on exam conditions (here)


  • Exam 1 in week 6 (Chaps 1-3)
  • Exam 2 in week 11 (Chaps 4-7), comprehensive Ch 4: Circ Thms (lin, superpos, source transf, Thev/Norton, not max power), Ch 5 (op amps), Ch 6 (Cs & Ls), Ch 7 (1st order Circs)
  • Exam 3 in week 16 (Chaps 8-11), Ch 8 (2nd order circs), Ch 9 (sinusoids, phasors), Ch 10 (Sinus SS, only nodal/mesh), Ch 11(AC Power) (comprehensive)


  • Single phasor animation
  • Phasors (use to add sine waves)
  • RLC Summary (extra tip sheet for exam 3) (students should proof for any errors on this form on their own)

  • (PDF) - CT GUIDE

  • (PDF) - Electricity

  • (vid) - Matlab intro


SCHEDULE

    WEEK ... Exam ...... HW due .... Lec(pdf) ...... Vids ............... Topic
    wk 1 ........................... (x) ................................ (HOLIDAY)
    wk 2 ........................... (x) .......... ( 1:20 ) ............. Ch 1 - Basic Concepts
    wk 3 ............... hw 1,2 .... (x) .......... ( 2:40 ) ............. Ch 2 - Basic Laws
    wk 4 ............... hw 3 ...... (x) .......... ( 2:35 ) ............. Ch 3 - Methods of Analysis
    wk 5 ............... hw 4 ...... (x) .......... ( 2:43, blk ) .......... Ch 4 - Circuit Theorems
    wk 6 .... ex 1 ................. (x) ................................ (ex 1)
    wk 7 ............... hw 5 ...... (x) .......... ( 1:45 ) ............. Ch 5 - Op Amps
    wk 8 ............... hw 6 ...... (x) .......... ( 0:44, old ) .......... Ch 6 - Cs & Ls (if holiday, watch vid)
    (SPRING BREAK) ......................................................
    wk 9 ............... hw 7 ...... (x) .......... ( 2:33 ) ............. Ch 7 - First Order Circuits
    wk 10 .............. hw 8 ...... (x) .......... ( 2:35 (ed) ) .......... Ch 8 - 2nd Order Circuits (1/2)
    wk 11 ... ex 2 ................. (x) ................................ (ex 2)
    wk 12 .............. hw 9 ...... (x) .......... ( 1:19, redo-paper ) ..... Ch 8 - 2nd Order Circuits (2/2)
    wk 13 .............. hw 10 ..... (x) .......... ( 2:38 ) .............. Ch 9 - Sinusoids, Phasors
    wk 14 .............. hw 11 ..... (x) .......... ( :53 ),( 1:49 )........ Ch 10 - Sinus SS Analys, AC Power
    wk 15 .............. hw 12,13 .. (x) .......... ( 0:51 ) .............. Ch 11 - AC Power
    wk 16 ... ex 3 ................. (x) ................................. (ex 3)
    (zoom vids from SP 2021)

    xxxx



HOMEWORK

  • suggested problems are NOT turned in
  • do "computer" or "Matlab" problems by hand (not computer or matlab)

  • hw 1 - (due wk 3) - Read syllabus & Qs on Canvas) (nothing submitted)
  • hw 2 (ALSO due wk 3):
    (Section 1.3 Charge & Current) 1.2 (c,d only)
    (Section 1.4, 1.5 Voltage, Power, E) 1.10
    (Section 1.6 Circuit Elements) 1.16, 1.20
  • hw 3 (due wk 4):
    (Section 2.3 Nodes, Branches, Loops) 2.5, ("loops" means indep loops)
    (Section 2.4 Kirchhoff's Laws) 2.11, 2.15
    (Section 2.5, 2.6 Series & Parallel Rs) 2.29, 2.45b
  • hw 4 (due wk 5) (make a copy before turning in so you can study w/ it):
    (Section 3.2, 3.3 Nodal Analysis) 3.6, 3.11, 3.23
    (Section 3.4, 3.5 Mesh Analysis) 3.36, 3.41, 3.61
    (suggested but don't submit: noda/mesh by insp: 3.69*, 3.73*, in vector-[ ] form)
  • (no hw due wk 6, study for exam)
  • hw 5 (due wk 7):
    (Section 4.2 Linearity) 4.7
    (Section 4.3 Superposition) 4.12
    (Section 4.4 Source Transformation) 4.30
    (Section 4.5, 4.6 Thev/Norton) 4.41
    (Section 4.7 Max Power) 4.66
    (suggested but don't submit: 4.3, 4.16, 4.20, 4.47, 4.70)
  • hw 6 (due wk 8)
    (Section 5.2 Op Amps) 5.5
    (Section 5.3 Ideal Op Amp) 5.9
    (Section 5.4 Inverting Amp) 5.20
    (Section 5.6 Summing Amp) 5.37
    (Section 5.8 Cascaded Op Amp) 5.73
    (suggested but don't submit: 5.23, 5.57)
  • (Spring Break betw wk 8 & 9)
  • hw 7 (due wk 9 after Sp break):
    (Section 6.2 Capacitors) 6.5
    (Section 6.3 Series/Parallel Cs) 6.18
    (Section 6.4 Inductors) 6.48
    (Section 6.5 Series/Parallel Ls) 6.55a
    (Section 6.6 Applications) 6.73
    (suggested but don't submit: 6.13, 40)

  • hw 8 (due wk 10)
    (Section 7.2 Source-Free RC) 7.9
    (Section 7.3 Source-Free RL) 7.23
    (Section 7.5 Step-Response RC) 7.39, 7.43
    (Section 7.6 Step-Response RL) 7.53, 7.59
    (suggested but don't turn in: 7.3, 7.15)
  • (no hw due wk 11 - study for exam 2)
  • hw 9 (due wk 12):
    (Section 8.2 Initial-final value) 8.3, 8.5
    (Section 8.3 Source-Free Series RLC) 8.15, 8.17
  • hw 10 (due wk 13):
    (Section 8.4 Source-free Parallel RLC) 8.23, 8.24
    (Section 8.5 Step-Response Series RLC) 8.27, 8.31
    (Section 8.6 Step-Response Parallel RLC) 8.45
  • NOTE - ANSWERS FOR PROBLEMS CH 9, 10, 11 MUST BE EXPRESSED as follows:
    Acos(ω *t + φ) (if in time domain), in polar form (r ∠ φ) (if a phasor)
  • hw 11 (due wk 14):
    (Section 9.3 Phasors) 9.11
    (Section 9.4 Phasor relationships) 9.29, 9.31
    (Section 9.5 Impedance/admittance) 9.43
    (Section 9.7 Impedance combos) 9.57, 9.59
    (suggested but don't submit: 9.2, 3, 13, 35)
  • hw 12 (due wk 15):
    (Section 10.2 Nodal Analysis) 10.7
    (Section 10.3 Mesh Analysis) 10.25
    (suggested: do some superposition, source transformation, & Thev/Norton probs)
  • AC power (also part of hw 12, due wk 15)
    (Section 11.3 Max Avg Power Transfr) 11.13
    (Section 11.4 RMS Power) 11.27
    (Section 11.5 Apparent Power & pf) 11.41
    (Section 11.6 Complex Power) 11.47
    (suggested but don't submit: 11.3, 5, 22, 45, 69)
  • hw 13 - (due wk 15), complete survey, on my homepage (not Canvas, but upload screen cap of last page onto Canvas)

Engr 250L - Electric Circuits Lab Stuff ---------------------------------------



COURSE INFO

  • GUIDES PAGE

  • (PDF) - CT GUIDE

    Lab exams
    - conditions: CLOSED book/notes, 2-sided 8.5x11" "tip" sheets ok
    - details on exam conditions (here)

    - content: labs handouts, lab activity, posted vids, & cross-referenced materials
  • Lab exam 1 (wk 6) (Labs 1, 2, 3, including lab safety & care)
  • Lab exam 2 (wk 11) (Labs 4, 5, 6)
  • Lab exam 3 (wk 16) (Lab 7, 8, 9, 10, 11)

ANNOUNCEMENTS, HANDOUTS



LAB HANDOUTS, VIDS

  • Lab 1 (done wk 2, due wk 2) - Intro to Lab (1h)
    (vid, 0:10) - Equip Intro

  • Lab 2 (done wk 3, due wk 4) - Wire, Bb, DMM (meas R & V) (1.5h)
    - watch 1st 10 vids on GUIDES page under "Circuits, Wiring, DMM" - (last vid to watch in list is "BK Precision DMM 2")

  • Lab 3 (done wk 4, due wk 5) - Resistive Circuits (2h)
    (ct 0:09) - Resistive Circuits

  • Lab 4 (done wk 5, due wk 6) - Scope/FG I (2h) (doc)
    (ct 0:34) - Scope & FG
    (ct 0:18) - Tektronix scope 1

  • (wk 6 - exam 1 - no lab)

  • Lab 5 (done wk 7, due wk 8) - Scope II (2h) (doc)
    (0:27) - Scope II

  • (wk 8 - lab videos)

LAB HANDOUTS, VIDS



LINKS 1

LINKS 2

  • ( link ) Mech Univ - Elec Circs
  • ( link ) Mech univ - AC circuits
  • ( link ) Mech univ - Capacitance & Potential
  • ( yvid ) Amer Exper - Si Valley (Traitorous 8)
  • ( yvid ) IC chip (2:14), Moore's Law (5:08)
  • ( yvid ) 391 San Antonio Rd (interviews)
  • ( yvid ) Amer Exper - Clip 2 (Noyce bio)
  • ( yvid ) xxx

LINKS 3

  • ( link ) Euler's Equation meaning (3Blue1brown) (35:12-39:22)