# Shared Flashcard Set

## Details

UCR Physics 40C
Electromagnetism
36
Physics
11/02/2008

Term
 DielectricsV, E, C
Definition
 V0    ,  E0  ,  KC0K       K
Term
 Electric Field of a Ring
Definition
 2(π)(a)(sigma)KX(r2)(3/2)
Term
 Electric DipolesE.F., Potential Energy,
Definition
 E.F.   2kq         r2  Potential Energy -qr * E
Term
 Potential or Volts of a Disc
Definition
 U=2(π)K(sigma)(r-x)
Term
 Electric Field of an Infinite Wire or Infinite Cylinder
Definition
 2k(sigma)       r
Term
 Electric Field of an Infinite Plane
Definition
 2πK(sigma)
Term
 Voltage in a Wire
Definition
 V = E * L
Term
 Electric Field inside a Solid Sphere
Definition
Term
 Potential of an Infinite Plane
Definition
 2πk(sigma)r
Term
 Potential of a Ring
Definition
 2πaK(sigma)distance
Term
 Capacitance of a Cylinder
Definition
 2KL   ln(rb/ra)
Term
 Potential of a Infinte Wire or Infinite Cylinder
Definition
 2K(sigma) * ln(rb/ra)
Term
 Electric Field of a Disc
Definition
 2πk(sigma)(1-x/r)
Term
 Voltage of Capacitor
Definition
 V=E*D     =     sigma*d    =      Qd                             Epsilon0         A*Epsilon0
Term
 B of a ring or coil at axis
Definition
 u0INa22(x2+a2)3/2
Term
 B of a ring or coil at center
Definition
 u0IN2a  x=0
Term
 B in a solenoidout?
Definition
 u0IN out=0
Term
 B inside a cylinder
Definition
 u0Ix2πr2
Term
 B outside a cylinder
Definition
 u0I2πr
Term
 Force of 2 wires on eachother
Definition
 F =  u0I1I2L       2πr
Term
 B field of a toroidal soleniod (donut)
Definition
 Note: field only between wires i.e. dough of doughnut u0NI2πr
Term
 B of infinite wire
Definition
 u0I2πr
Term
 Emf due to magnet
Definition
 -BAcos0 t
Term
 emf of Rotating Wheel
Definition
 WBR22
Term
 Charge of a Rotating Wheel
Definition
 Q=NBA    R
Term
 emf of a Motor
Definition
 wBAsin(wt)N Emax=NBAw
Term
 Induced emf of a motor
Definition
 -u0NA I           T
Term
 Flux of a motor
Definition
 u0NIA
Term
 Induced emf in a loop
Definition
 u0L ln(R/r)2π
Term
 Flux in a loop
Definition
 u0IL ln(r/R)2π
Term
 Flux in a coil
Definition
 NBAcos0
Term
 Force due to I and B
Definition
 F=IL x B
Term
 emf of a sliding bar
Definition
 -BLv u0NIAL
Term
 Force due to a moving charge
Definition
 F=qvBF=qE
Term
 Emf of moving bar
Definition
 EL=vBL=V
Term
 Magnetic Energy Densitywith L
Definition
 U= B2     2u0 *L=2U/I
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