# Shared Flashcard Set

## Details

Physics 2524
Chapter 35
23
Physics
12/12/2010

Term
 Galilean transformation of velocity
Definition
 Allows us to transform a velocity measured in one reference frame into the velocity that would be measured in a different reference frame. The fields are measured at the same point in space by experimenters at rest.
Term
 Lorentz Force
Definition
 The combined electric and magnetic force on a charged particle. F= q(E + v X B)
Term
 The transformation of the electric and magnetic fields in frame S to frame S'
Definition
 E' = E + V X B
Term
 The variable for vector v'
Definition
 V
Term
 Field E' is the induced electric field of
Definition
 Faraday's Law. Which is a statement that a changing magnetic field creates an electric field.
Term
 Gauss's Law for magnetic fields
Definition
 We can't enclose a net pole within a surface, and is the mathematical statement that magnetic field lines form closed loops, they don't start or stop, which is why there are no magnetic monopoles.
Term
 Electric Flux is independent of
Definition
 Capacitor plate size, and the flux is changing with time directly proportional to the charging current. Φe=Q/ε0 Φe'=I/ε0
Term
 Maxwell hypothesized that the displacement current was
Definition
 the "missing" piece of Ampere's Law, so he modified it and now it is called the Ampere-Maxwell Law ∫B·ds=μ0{(r2dQ)/(R2dt)}    dQ/dt = I = the rate the capacitor is charged   ∫B·ds = BL = 2ΠrB   R=total radius of capacitor r= radius of point inside capacitor
Term
 The electric field of a parallel-plate capacitor
Definition
 E= Q/(ε0A)= Q/(ε0Πr2)
Term
 The magnetic field created by a changing E is called
Definition
 The induced magnetic field. Which the change in electric field is equivalent to the magnetic field strength.
Term
 Gauss's Law
Definition
 Charged particles create an electric field.
Term
Definition
 An electric field can also be created by a changing magnetic field, and is concerned with the changing magnetic flux through a closed surface.
Term
 Gauss's Law for magnetism
Definition
 There are no magnetic monopoles
Term
 Ampere-Maxwell law, first half
Definition
 Currents create a magnetic field
Term
 Ampere-Maxwell law, second half
Definition
 A magnetic force is exerted on a charge moving in a magnetic field
Term
 The intensity of an electromagnetic wave
Definition
 I=P/A=(cε0/2)E02 P=power A=area c=speed of light ε0=8.85x10-12 E0=intensity of the electric field amplitude
Term
Definition
 prad=F/A=(P/A)/c=I/c F=force A=area P=power c=3x108 I=intensity={(cε0)/2}E0 E0=intensity of electric field amplitude
Term
 Plane of polarization
Definition
 The plane of electric field vector E and the Poynting vector S.
Term
 Transmitted intensity of polarized light
Definition
 Itransmitted=I0cos2Θ (incident light polarization)
Term
 Intensity transmitted by a polarizing filter of unpolarized light.
Definition
 Itransmitted=(1/2)I0 (incident light unpolarized)
Term
 Wavelength
Definition
 Bt=B0sin(kx-wt)   Wave's wavelength Λ=(2Π)/k   Frequency f=c/Λ   Electric field amplitude E0=cB0
Term
 What is the direction of the induced current if B increases?
Definition
 Counter clockwise
Term
 Fleming's Left Hand Rule
Definition
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