# PhysicsFinalEquations

 The flashcards below were created by user victimsofadown on FreezingBlue Flashcards. Electric field strengthq: the charge creating the fieldr: distance from the field (point in space) Electric field strength of a parallel plate capacitor E: electric field strengthΔV: change in potential of the plates (power source)d: distance between the plates Potential at a point distance away from a chargeScalar quantity (+,-,0)q: central charger: distance from that charge epe=Vq (q=other charge) Coulomb's lawInteraction for point electric chargesq: chargesr: distance separating themDirection determined by hand via attraction/repulsion If we place a charge within an electric fieldq: chargeE: electric field strengthDirection must be determined by hand via attraction/repulsion Work is equal to - change in epe or + change in ke electric potential energyV: electric potential of a space (point distance)q: charge Work done on a charge in an electric fieldq: chargeV: potential of the charge Kinetic energy (normal)m: massv: velocity Capacitance of a capacitor ε0: permativity of free spaceA: area of the plates of a capacitord: distance between the plates Ohm's LawPotential = current x resistance Equivalent resistance of resistors IN SERIES Equivalent resistance of resistors IN PARALLEL P: power V: potentialI: currentR: resistance Capacitance of a capacitorq: charge of platesV: voltage difference between plates Equivalent capacitor for capacitors IN PARALLEL Equivalent capacitor for capacitors IN SERIES Energy stored in a capacitorU: epeC: capacitanceV: voltage (potential)q: charge Power is equal to work over time Exponential decay of stored charge in a capacitor Exponential decay of current across a resistor (as resistance builds) Exponential growth of charge being stored in a capacitor Exponential decay of current in a capacitor (as charge builds) Induced emf from change in magnetic field-: indicates that the direction opposes changeN: number of loopsΔΦ: change in fluxΔt: change in time Force exerted on a wire from a magnetic fieldF: forceI: current in wireL: length of wire in B fieldB: magnetic field strengthθ: angle between I and B Magnetic FluxA: surface areaB: magnetic fieldθ: angle between magnetic field and **normal to area Shell's lawθ: angle between ray and NORMAL of surfacen: refractive index refractive indexv: speed of light in substancec: speed of light in vaccumn: refractive index (Electromagnetic wave)c: speed of light in vaccumf: frequency of waveλ: wavelength d0: distance between object and mirrordi: distance between image and mirrorf: focal lengthf>0 converging lens, f<0 diverging lensdi>0 real image, di<0 virtual image M: hi: image heighth0: object heightd0: distance between object and mirrordi: distance between image and mirrorm<0 real, inverted imagem>0 virtual, upright image Authorvictimsofadown ID274970 Card SetPhysicsFinalEquations DescriptionPhysicsFinalEquations Updated2014-05-21T16:27:54Z Show Answers