Description
* Test I Study Guide (Ch.1619) *
Ch.16: Electric Charge & Electric Field
Insulator VS. charges can't move ex. Wood, plastic
Conductor charges can move around ex. metal
Electric charges : OPPOSITES ATTRACT symbol:Q ♡ ♡ © ° OO 000 unit coulomb (C) elementary charge: e = 1.6022* 1019 C
Don't forget about the age old question of How does immigration affect identity?
(proton: te charge; electron: e charge)
Coulomb's aw F=k K= 8.988*109 N.m/c2 *another way to write k: 60  ATTK *remember: use VECTOR sums superposition Fiz  F2, blc of Newton's 3rd Law ( = & opposite)
T NEM
Force acting on a small + test Electric Field
charge by its charge * also can be written: EKQ or Esate a unit: Newtons/coulomb (NIC) Don't forget about the age old question of Conspiracy theories mean what?
F $ É point in same direction o charge : moves radially away o charge: moves radially inward We also discuss several other topics like What is the content of thompson’s thought experiments?
Don't forget about the age old question of What is the definition of biological anthropology?
S
Electric Field Lines
tangent to field line originate on a charge < endono charge denseStrong & lines never cross
A parallel Plates e at Uniform Field Ema a=
& conductors 0 Any net charge distributed on surface of conductor 2 E outside of conductor: perpendicular to surface
Gauss's law De = EACOSO unit: Nom?
csum
electric flux L LE, DA, COSO, + E2 AA 2 Cose, t... *only need NET
PE = Qenclosed = 4tTr?E= q CHARGE to find Don't forget about the age old question of What is the nature of dominantminority group relations?
to
to NET FLUX spherical symmetry Qenci = Q outside Qenci  0 inside
PS
Ch.17: Electric Potential
Electric Potential Energy
W=Fd = a Ed PEbPEQ=q Ed
Electric Potential aka potential Difference (V) Vba = V6Vă  APEva APE=20V If you want to learn more check out What are the four dimensions of the american dream?
scalar unit: volt? (V) 1V=ITIC for uniform field: AV=  Ed E= A
Potential Due to a point charge V=K potential near: large $Đ potential far: small to
25V
"npa OV 20V isv JOV 5V
Equipotential Lines: I to electric field
potential not changing along lines Electric Dipole V=kQl cos o dipole moment: V=Kpcose pdipole moment midline = 0 potential closer to = V closer to ©  V
Capacitance QCV C unit: farad capacitor : used to store electric energy (F) battery: maintains constant pot. diff. IF=1/v
re
Parallel Plate capacitor
& = Q/A
VE Ed=Qd
ERA
EO  area of either plate
C=Q/
trin insulating material placed between plater to
mert capacitance v net electric field C= K to Alld or CE Ald 6=KEO
dielectric constant
permittivity
ii energy stored in a capacitor; related to chergy Density.amt. of work done in charging capacitor
· average work done: W=QV Tallenerowo
energy stored in charged capacitor : PE = Q V=CV?  Vi energy stored in electric field of capacitor: PE=EAd. energy density lenergy per volume) : 0
. u=PE VEE
Ad
= ZE E
Ch.18: Electric currents
AL
Current IAQ unit: Ampere (A)
1A=ICIS high potential 7 low potential terminal 0 Ohm's Law VIR (true unless specified false)
Resistance R = VI unit: ohms (12) R = VA a R = less current VRmore current
Mirelates propertier of a material to the resistance Kesistivity: Of a device made of that material (P)
R  Pya Punit: sim #look up intable Pr  Po [lta (TT.)] di temperature coefficient from table Rs = Ro[1 + a (TTo)] Power PIV P= IPR unit: Watt (w)
Alternating Current V= Vo sin 277ft Vosin wt Voepeak voltage I Io sin wt Icepeak current
Irms = 10/2 rms
? Irms = Vrms /R Vems Irms = ľ
avamge
Vrms
rms
average
power
Ch.19: DC Circuits EMF(E) Vab= € Irk internet resistance I €
Ror
www
Resistors in serie end to end . LHE
·current = (same I)  Vi=IR, V2=IR2 etc. V=V, + V2 + V3
· V across all 3 (sum) = Voltage of battery Rea  R,+ R2 + Rz tequivalent circuit
I miei Resistors in Parallel
Linkz potential diff. = (same V)
het hom I, = V/R, I2 = V/R2 etc.
tr
·current of all 3 (sum) = current from battery
I= Ii+ Iz+Iz Rea =
I t i ti t for equivalent
R + R + R3 
circuit
VV
Kirchhoff's Rules  Loop Rule: Energy = I, 12, + I 2 Zz
· Junction Rule : I,  IĄ + Iz
volts junction must = volts leaving innction

I capacitors in parallel.
Q, = C,V Q2 = C2 V potential diff. = (same V) charges (Q) sum Q=Q, + Qz.
Ceq = C, + C2 tequivamente
idrsal
Capacitors in Series V, = 0/C, V2 = 9/C2
charge = (same Q) ?
· potentials sum VV; + V2
D E for equivalent circuit
Et cz
Switch
between
RC Circuits €  Ve+ VC Ve=IR V=Q/C &=I2+O/C {at tao Vc=0 & = VR I = Ele}
I = €/RRC Q QT » I v  Charging slower Ite e trec Ve = E(1e *rec) Ve=&et/ec
Tc = RC a time constant tan
TR or 1 C longer time to charge capacitor Discharging: VeVie HRc Q Qoe tyre
* Test I Study Guide (Ch.1619) *
Ch.16: Electric Charge & Electric Field
Insulator VS. charges can't move ex. Wood, plastic
Conductor charges can move around ex. metal
Electric charges : OPPOSITES ATTRACT symbol:Q ♡ ♡ © ° OO 000 unit coulomb (C) elementary charge: e = 1.6022* 1019 C
(proton: te charge; electron: e charge)
Coulomb's aw F=k K= 8.988*109 N.m/c2 *another way to write k: 60  ATTK *remember: use VECTOR sums superposition Fiz  F2, blc of Newton's 3rd Law ( = & opposite)
T NEM
Force acting on a small + test Electric Field
charge by its charge * also can be written: EKQ or Esate a unit: Newtons/coulomb (NIC)
F $ É point in same direction o charge : moves radially away o charge: moves radially inward
S
Electric Field Lines
tangent to field line originate on a charge < endono charge denseStrong & lines never cross
A parallel Plates e at Uniform Field Ema a=
& conductors 0 Any net charge distributed on surface of conductor 2 E outside of conductor: perpendicular to surface
Gauss's law De = EACOSO unit: Nom?
csum
electric flux L LE, DA, COSO, + E2 AA 2 Cose, t... *only need NET
PE = Qenclosed = 4tTr?E= q CHARGE to find
to
to NET FLUX spherical symmetry Qenci = Q outside Qenci  0 inside
PS
Ch.17: Electric Potential
Electric Potential Energy
W=Fd = a Ed PEbPEQ=q Ed
Electric Potential aka potential Difference (V) Vba = V6Vă  APEva APE=20V
scalar unit: volt? (V) 1V=ITIC for uniform field: AV=  Ed E= A
Potential Due to a point charge V=K potential near: large $Đ potential far: small to
25V
"npa OV 20V isv JOV 5V
Equipotential Lines: I to electric field
potential not changing along lines Electric Dipole V=kQl cos o dipole moment: V=Kpcose pdipole moment midline = 0 potential closer to = V closer to ©  V
Capacitance QCV C unit: farad capacitor : used to store electric energy (F) battery: maintains constant pot. diff. IF=1/v
re
Parallel Plate capacitor
& = Q/A
VE Ed=Qd
ERA
EO  area of either plate
C=Q/
trin insulating material placed between plater to
mert capacitance v net electric field C= K to Alld or CE Ald 6=KEO
dielectric constant
permittivity
ii energy stored in a capacitor; related to chergy Density.amt. of work done in charging capacitor
· average work done: W=QV Tallenerowo
energy stored in charged capacitor : PE = Q V=CV?  Vi energy stored in electric field of capacitor: PE=EAd. energy density lenergy per volume) : 0
. u=PE VEE
Ad
= ZE E
Ch.18: Electric currents
AL
Current IAQ unit: Ampere (A)
1A=ICIS high potential 7 low potential terminal 0 Ohm's Law VIR (true unless specified false)
Resistance R = VI unit: ohms (12) R = VA a R = less current VRmore current
Mirelates propertier of a material to the resistance Kesistivity: Of a device made of that material (P)
R  Pya Punit: sim #look up intable Pr  Po [lta (TT.)] di temperature coefficient from table Rs = Ro[1 + a (TTo)] Power PIV P= IPR unit: Watt (w)
Alternating Current V= Vo sin 277ft Vosin wt Voepeak voltage I Io sin wt Icepeak current
Irms = 10/2 rms
? Irms = Vrms /R Vems Irms = ľ
avamge
Vrms
rms
average
power
Ch.19: DC Circuits EMF(E) Vab= € Irk internet resistance I €
Ror
www
Resistors in serie end to end . LHE
·current = (same I)  Vi=IR, V2=IR2 etc. V=V, + V2 + V3
· V across all 3 (sum) = Voltage of battery Rea  R,+ R2 + Rz tequivalent circuit
I miei Resistors in Parallel
Linkz potential diff. = (same V)
het hom I, = V/R, I2 = V/R2 etc.
tr
·current of all 3 (sum) = current from battery
I= Ii+ Iz+Iz Rea =
I t i ti t for equivalent
R + R + R3 
circuit
VV
Kirchhoff's Rules  Loop Rule: Energy = I, 12, + I 2 Zz
· Junction Rule : I,  IĄ + Iz
volts junction must = volts leaving innction

I capacitors in parallel.
Q, = C,V Q2 = C2 V potential diff. = (same V) charges (Q) sum Q=Q, + Qz.
Ceq = C, + C2 tequivamente
idrsal
Capacitors in Series V, = 0/C, V2 = 9/C2
charge = (same Q) ?
· potentials sum VV; + V2
D E for equivalent circuit
Et cz
Switch
between
RC Circuits €  Ve+ VC Ve=IR V=Q/C &=I2+O/C {at tao Vc=0 & = VR I = Ele}
I = €/RRC Q QT » I v  Charging slower Ite e trec Ve = E(1e *rec) Ve=&et/ec
Tc = RC a time constant tan
TR or 1 C longer time to charge capacitor Discharging: VeVie HRc Q Qoe tyre