Unformatted text preview: spherical distribution: € inside electrostatic conductor: E = 0 Chapter 29: Electric Potential
U = qV ; ΔU = qΔV uniform field: multiple point charges: ; ΔV = EΔs point charge: ; Chapter 30: Potential and Field
outside a spherical distribution: Capacitance and capacitors parallel
plate: Key Formulas 6 Combining capacitors Energy of a capacitor parallel: Cequiv = C1 + C2 + ... −1 Ⱥ 1
Ⱥ
1
+ ...Ⱥ series: Cequiv = Ⱥ +
Ⱥ C1 C2
Ⱥ
€
Chapter 31: Current and Resistance € Current I= Q
dQ
Iavg = Δt
dt Current density €
R=ρ A Ohm’s Law Key Formulas 7 Chapter 32: Fundamentals of Circuits
Kirchhoff’s rules loop: ∑ (ΔV ) i Power = 0 general: P = IΔV around loop resistor: P = I 2 R junction: ∑ Iin = ∑ Iout Combining resistors DC Circuits € of voltage changes Sign ΔV = – parallel: Requiv Ⱥ 1
Ⱥ −1
1
= Ⱥ +
+ ...Ⱥ Ⱥ R1 R2
Ⱥ series: Requiv = R1 + R2 + ... –ε €RC circuit + € time constant: ΔV = +ε discharging: ΔV = +IR charging: charge and discharge: I ΔV = –IR ΔV = –Q/C – + ΔV = +Q/C Key Formulas 8 Chapter 33 Magnetism µ 0 qv × r
ˆ
point charge: B =
2
4π r Force on a charged particle Fmagnetic = qv × B µ 0 IΔs × r
ˆ
current segment: ΔB =
2
4π r € µ0 = 4π x 10–7 Tm/A Ampere’s law s
∫...
View
Full
Document
This document was uploaded on 04/05/2014 for the course PHY 152 at MiraCosta College.
 Spring '14
 Physics, Energy, Work

Click to edit the document details