# Shared Flashcard Set

## Details

Physics 2524
Chapter 34
16
Physics
12/10/2010

Term
 The Power Provided to the circuit by pulling on the wire
Definition
 Pinput=Fpullv=(v2l2B2)/R
Term
 Force required to pull the wire with a constant speed v
Definition
 Fpull=(vl2B2)/R
Term
 Power dissipated by a circuit
Definition
 Pdissipated=I2R=(v2l2B2)/R
Term
 Ohm's Law
Definition
 I=(vlB)/R
Term
 Motional emf perpendicular to a magnetic field
Definition
 ξ=vlB
Term
 Magnetic Flux
Definition
 Φm=ABcosΘ
Term
 Total magnetic flux through a loop
Definition
 Φm= ∫ B · dA area of loop
Term
 Infinitesimal Flux through a small area
Definition
 dΦm = {(µ0Ib)/(2Πx)}dx
Term
 Induced emf
Definition
 Iinduced=ξ/R = (vlB)/R
Term
Definition
 ξ = | dΦm/dt | = vlB   ξ = -(dΦm/dt)
Term
 Lenz's Law
Definition
 There is an induced current in a closed, conducting loop if and only if the magnetic flux though the loop is changed.
Term
 Work done by the induced electric field as charge q moves around a closed curve
Definition
 Wclosed curve=q ∫E · ds = Πr2 |(dB)/(dt)|                              ↑                            closed
Term
 Induction of a solenoid
Definition
 Lsolenoid =Φm/I=(μ0N2A)/l N=l/d L=length need to give inductance
Term
 When does potential decrease?
Definition
 Potential decreases in the direction of increasing current
Term
 Total energy stored in an inductor
Definition
 UL=1LI2= (1)   Al (μ0NI)2          2      (2μ0)         (l)
Term