Name ofquantity, &symbolusedWhat itmeasuresunitsSomething we saw orread about that servesas a quantitativeexample of thisAn equation thatinvolves thisAn alternate setof unitsMagneticpole, pstrength of amagnetAmpstimesmeters0.1 Amp*meters istypical of electro-magnets we built; barmagnets might be 10Amp*meters or moreF = pB(C/s)* meterMagneticfield, BHow space ischanged bythe presenceof a magnetTeslaEarth’s magnetic fieldis about 0.00005 Tesla= 5E-5 TeslaU = B2*v/(8pkm); Uis energy of B-field ,v is VolumeTesla = N/(Amp*meter)Magneticconstant, kmHow strongthe magneticforce is vs.gravity andelectricityN/Amp2km=1x10-7N/Amp2; textdefines “mu-naught” =m0= 4pkmFmag= km*p1*p2/r2N*sec2/C2Power, PEnergyconsumed persecondWattsLight bulb 60 Watts, ortypical horse can doabout 746 WattsP=IVJoule/secondCurrent, ICharge persecond goingpast a pointAmpsTypical householdobjects use about 1AmpI=V/RCoulomb persecondResistance,RHow much anobject resists
