Thought of the Day
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Thought of the Day IT 327 - Supplemental Chap 1 1 The mission of Brigham Young University is to assist individuals in their quest for perfection and eternal life (from The Mission Statement of Brigham Young University). To this end, BYU seeks to develop students of faith, intellect, and character who have the skills and the desire to continue learning and to serve others throughout their lives. These are the common aims of all education at BYU. Both those who teach in the classroom and those who direct activities outside the classroom are responsible for contributing to this complete educational vision. (Paragraph 1 from The Aims of a BYU Education) The aims of a BYU education are that it be: 1) Spiritually Strengthening 2) Intellectually Enlarging 3) Character Building 4) Lifelong Learning and Service (The Aims of a BYU Education was approved by the BYU Board of Trustees on March 1, 1995)
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As the conducting medium in an electric circuit is capable of conveying but a limited current, the maximum capacity depending upon the resistance - PowerPoint PPT Presentation
Transcript of Thought of the Day
IT 327 - Supplemental Chap 1 1
Thought of the Day
The mission of Brigham Young University is to assist individuals in their quest for perfection and eternal life (from The Mission Statement of Brigham Young University). To this end, BYU seeks to develop students of faith, intellect, and character who have the skills and the desire to continue learning and to serve others throughout their lives. These are the common aims of all education at BYU. Both those who teach in the classroom and those who direct activities outside the classroom are responsible for contributing to this complete educational vision.(Paragraph 1 from The Aims of a BYU Education)
The aims of a BYU education are that it be:1) Spiritually Strengthening2) Intellectually Enlarging3) Character Building4) Lifelong Learning and Service
(The Aims of a BYU Education was approved by the BYU Board of Trustees on March 1, 1995)
IT 327 - Supplemental Chap 1 2
PreliminariesIntroductions:
NameHomeClass Standing (when will you graduate?)
TAs: TBDLabs, Homework
Syllabus: Questions?
IT 327 - Supplemental Chap 1 3
BYU Dress & Grooming StandardsThe dress and grooming of both men and women should always be modest, neat, and clean, consistent with the dignity adherent to representing The Church of Jesus Christ of Latter-day Saints and any of its institutions of higher education.
Modesty and cleanliness are important values that reflect personal dignity and integrity, through which students, staff, and faculty represent the principles and standards of the Church. Members of the BYU community commit themselves to observe the following standards, which reflect the direction of the Board of Trustees and the Church publication For the Strength of Youth. The Dress and Grooming Standards are as follows:
Men
A clean and well-cared-for appearance should be maintained. Clothing is inappropriate when it is sleeveless, revealing, or form fitting. Shorts must be knee-length or longer. Hairstyles should be clean and neat, avoiding extreme styles or colors, and trimmed above the collar, leaving the ear uncovered. Sideburns should not extend below the earlobe or onto the cheek. If worn, moustaches should be neatly trimmed and may not extend beyond or below the corners of the mouth. Men are expected to be clean-shaven; beards are not acceptable. Earrings and other body piercing are not acceptable. Shoes should be worn in all public campus areas.
Women
A clean and well-cared-for appearance should be maintained. Clothing is inappropriate when it is sleeveless, strapless, backless, or revealing; has slits above the knee; or is form fitting. Dresses, skirts, and shorts must be knee-length or longer. Hairstyles should be clean and neat, avoiding extremes in styles or colors. Excessive ear piercing (more than one per ear) and all other body piercing are not acceptable. Shoes should be worn in all public campus areas.
IT 327 - Supplemental Chap 1 4
Supplemental, Chap 1:DC Electric Circuits
IT 318 - M1 5
Term
Units
Unit Abbrev
Symbol
Meaning
Voltage Volts V E ElectroMotive Force (EMF)
Current Amperes A I Flow of electrons1 A = 1 Coulomb/sec
Resistance Ohms Ω R Opposition to electron flowPower Watts W P Energy/unit time – Joules/sec
1 W = 1 Joule/sec
Frequency Hertz Hz f Cycles/sec1 Hz = 1 cycle/sec
Electronic Terms
IT 318 - M1 6
Term
Units
Unit Abbrev
Symbol
Meaning
Voltage Volts V E ElectroMotive Force (EMF)
Current Amperes A I Flow of electrons1 A = 1 Coulomb/sec
Resistance Ohms Ω R Opposition to electron flowPower Watts W P Energy/unit time – Joules/sec
1 W = 1 Joule/sec
Frequency Hertz Hz f Cycles/sec1 Hz = 1 cycle/sec
Electronic Terms
IT 318 - M1 7
Term
Units
Unit Abbrev
Symbol
Voltage
Amperes
ΩP
Frequency
Electronic Terms
IT 318 - M1 8
Prefix Name
Symbol
Multiplier
Prefix Name
Symbol
Multiplier
milli m 10-3 kilo k 103
micro µ 10-6 Mega M(illion) 106
nano n(ine) 10-9 Giga G 109
pico p 10-12 Tera T(welve) 1012
femto f(ifteen) 10-15 Peta P 1015
atto a 10-18 Exa E(ighteen) 1018
zepto z 10-21 Zetta Z 1021
yocto y 10-24 Yotta Y 1024
Scientific Prefixes
IT 318 - M1 9
Prefix Name
Symbol
Multiplier
Prefix Name
Symbol
Multiplier
milli m 10-3 kilo k 103
micro µ 10-6 Mega M(illion) 106
nano n(ine) 10-9 Giga G 109
pico p 10-12 Tera T(welve) 1012
femto f(ifteen) 10-15 Peta P 1015
atto a 10-18 Exa E(ighteen) 1018
zepto z 10-21 Zetta Z 1021
yocto y 10-24 Yotta Y 1024
Scientific Prefixes
IT 318 - M1 10
Prefix Name
Symbol
Multiplier
Prefix Name
Symbol
Multiplier
milli kilo
µ M(illion)
10-9 109
pico Tera
f(ifteen) P
10-18 1018
Scientific Prefixes
IT 327 - Supplemental Chap 1 11
Resistor Color CodeColor Value (1st &
2nd Stripes)Multiplier (3rd Stripe)
Tolerance Color
Tolerance (%)
Black 0 100 Gold ±5Brown 1 101 Silver ±10Red 2 102 Blank ±20Orange 3 103
Yellow 4 104
Green 5 105
Blue 6 106 Violet 7 107
Gray 8 108 White 9 109
Mnemonic: Better Boys Realize Our Young Girls Become Very Great Women
IT 318 - M1 12
IT 318 - M1 13
What is electricity?
• Water metaphor
• Bohr model of the atom
• Swarm of gnats
IT 327 - Supplemental Chap 1 14
Ohm’s Law• Water: more flow (gallons/min)
comes from:• More pressure• Less opposition
• Electricity: more flow (I) comes from:
• More pressure (E or V)• Less opposition (R)• I = E/R• R = E/I• E = IR
Power FormulaP = IE I = P/E E = P/I P = I²R P = E²/R
IT 318 - M1 15
IT 318 - M1 16
IT 327 - Supplemental Chap 1 17
Thought of the Day
As the conducting medium in an electric circuit is capable of conveying but a limited current, the maximum capacity depending upon the resistanceoffered by the conductor, and, as separate circuits of different degrees of conductivity may carry currents of widely varying intensity, so human souls are of varied capacity with respect to the higher powers. But as the medium is purified, as obstructions are removed, so resistance to the energy decreases, and the forces manifest themselves with greater intensity. By analogous processes of purification our spirits may be more susceptible to the forces of life, which are emanations from the Holy Spirit.
James E. Talmagefrom Articles of Faith
Series Circuits: Voltage Drops
+
-
R1
R2
E1
Element Voltage Drop Current PowerR1
R2
E1
Total
𝑉 𝑅𝑛=𝑉 𝑇∗
𝑅𝑛
𝑅𝑇
Voltage Divider Rule:
∑ 𝐸=¿∑ 𝑉 𝑲𝒊𝒓𝒄𝒉𝒐𝒇 𝒇 ′ 𝒔𝑽𝒐𝒍𝒕𝒂𝒈𝒆 𝑳𝒂𝒘 ¿
IT 327 - Supplemental Chap 1 19
Series Circuits: Voltage Rises
• Ampacity: (if all = 12 Volts)
+
-
Ri
700 Amps ≈3 Amps ≈0.75 Amps
D-Cells AAA-Cells
IT 327 - Supplemental Chap 1 20
Parallel Circuits: Voltage Drops
R1 R2+
-
•
•
E1
Element Voltage Drop Current PowerR1
R2
E1
Total
IT 327 - Supplemental Chap 1 21
Thought of the Day
And that same sociality which exists among us here will exist among us there, only it will be coupled with eternal glory, which glory we do not now enjoy.
D&C 130:2
IT 327 - Supplemental Chap 1 22
Parallel Circuits: Conductance
G1 G2+
-
•
•
E1
G = 1/R; Units = Siemens; Abbreviation = S1 Ω = 1 S1 kΩ = 1 mS1 MΩ = 1 µSGT = G1 + G2
IT 327 - Supplemental Chap 1 23
Conductance: Why?
R = resistance of wireL = inductance of wireC = capacitance of wireG = conductance of insulation
IT 327 - Supplemental Chap 1 24
Parallel Circuits: Voltage Rises
+
-
1.5 V @2.0 A +
-
2.0 V @2.5 A
E1 E2
Etotal =Itotal =
