2003$BG/EYHG(J
$B!ZFbMF
$B!ZNcBj(J4-1$B
$B!!(J
$B!!D>@~EEN.(JI1$B$,$"$k$H!"$^$o$j$K<'3&$,$G$-$k!#$3$N<'3&$NCf$KJL$NEEN.(JI2$B$,N.$l$l$P!"$3$NEEN.$K$ONO$,F/$/$3$H$K$J$k!#2^$K<($7$?$h$&$K!"(JI2$B$,(JI1$B$HF1$88~$-$@$H0z$-4s$;$i$l!"H?BP8~$-$@$HB`$1$i$l$k!#(J

$B5U$K(JI2$B$,:n$k<'3&$+$i(JI1$B$O!"2^$N$h$&$K!"NO$r

$BJ?9T$JD>@~>u$NEEN.(JI1$B!"(JI2$B$,5wN%(Jr$B$r3V$F$FF1$88~$-$KN.$l$F$$$k!#(J
$B!!(J(1)
I1$B$,(JI2$B$N0LCV$K:n$k<'3&$N<'B+L)EY$O$$$/$i$+!#(J
$B!!(J(2)
I2$B$ND9$5(Jl$B$NItJ,$K$+$+$kNO(JF12$B$O$$$/$i$+!#(J
$B!}%m!<%l%s%DNO(J(Lorentz force)
$B!!(J$BEEN.$H$OEE2Y$NN.$l$G$"$k!#$7$?$,$C$F!"<'3&Cf$NEEN.$KNO$,$+$+$k$H$$$&$3$H$O!"<'3&$NCf$rF0$/EE2Y$K$ONO$,2C$o$k$H$$$&$3$H$G$"$k!#$3$N$h$&$JNO$r%m!<%l%s%DNO$H$$$&!#$?$H$($P!"??6u4I$NCf$GJ|EE$5$;$?$H$-$KH/@8$9$k1"6K@~!JEE;R@~!K$K<'3&$r$+$1$k$H%m!<%l%s%DNO$,2C$o$j!"6J$,$k$N$,4QB,$5$l$k!#%F%l%S$d%Q%=%3%s$N(JCRT$B!J%G%#%9%W%l%$!K$K<'@P$r6a$E$1$k$H2hLL$,Mp$l$k$N$bF1$886M}$G$"$k!#(J
$B!!$5$F!"EE2Y$r;}$D#1$D$NN3;R$K$I$l$@$1$NNO$,$+$+$k$+9M$($F$_$h$&!#CGLL@Q(JS$B$NF3@~$NCf$KC10LBN@Q$"$?$j$N(Jn$B8D$N2YEEN3;R$,$"$k$H$9$k!#8D!9$NN3;R$NEE2Y$r(Jq$B!"B.EY$r(Jv$B$H$9$k$H!"$3$NF3@~$rN.$l$kEEN.(JI$B$O(J
$B!!!!(JI=nqSv
$B$HI=$5$l$k!#(J

$B$3$NEEN.$K<'B+L)EY(JB$B$N<'3&$,$+$+$k$H$-!"D9$5(J$B+1(J$B$NItJ,$K2C$o$kNO$O(J
$B!!!!(JF=IB$B+1(J=qnvSB$B+1(J
$B$H$J$k!#D9$5(J$B+1(J$B$NF3@~$K$O(JnS$B+1(J$B8D$NN3;R$,4^$^$l$k$+$i!"N3;R#18D$K$+$+$kNO(Jf $B$O(J
$B!!!!(Jf =qvB
$B$H$J$k!#(J
$B!!NO$N8~$-$O!"EE2Y$NId9f$K$h$C$F0[$J$k!#EE2Y$,@5$N$H$-$OEEN.$HEE2Y$NF0$/8~$-$H$O0lCW$9$k$N$G!"2^(J(a)$B$N$h$&$K$J$k$,!"EE2Y$,Ii$N$H$-$OEEN.$H5U8~$-$KF0$/$N$G(J(b)$B$N$h$&$K$J$k!#(J
$B!!!!(J
$B0lMM$J<'3&$,$+$+$C$F$$$kL8H"$XN3;R(Ja$B!"(Jb$B$rBG$A9~$s$@$H$3$m!"2^$N$h$&$J50@W$,F@$i$l$?!#$=$l$>$l$NN3;R$NEE2Y$O@5$+Ii$+!#$?$@$7!"<'3&$N8~$-$O2hLL
$B!!(J
$B!}%9%T!<%+!<(J
$B%9%T!<%+!<$N9=B$$O?^$N$h$&$K$J$C$F$$$k!#1_Cl>u$N<'6K$r1_E{7A$N<'6K$,0O$`$h$&$K$J$C$F$*$j!"$3$N7d4V$K%3%$%k$,$"$k!#Cf?4$N<'6K$,(JN$B$G30B&$N<'6K$,(JS$B$N>l9g<'3&$OCf$+$i30$K8~$+$C$F$G$-$k$N$G!"8eJ}$+$i8+$F:82s$j$KEEN.$,%3%$%k$rN.$l$k$HNO$OA08~$-$K$+$+$k!#1&2s$j$N;~$O8e$m8~$-$H$J$k$N$G!"8rN.$rN.$9$HA08e$K?6F0$9$k!#$3$N?6F0$,%3!<%s;f$KEA$($i$l!"2;GH$rJ|
$B!}D>N.%b!<%?!<(J
$B%3%$%k$r<'@P$N4V$KF~$l$k$H6vNO!J2sE>NO!K$,$+$+$k$,!"$U$D$&$N%3%$%k$KD>@\D>N.$rN.$7$?$N$G$O!"H>2sE>$9$k$H6vNO$N8~$-$,H?BP$K$J$k$?$a?6F0$9$k$@$1$G$"$k!#D>N.%b!<%?!<$G$O%V%i%7$H$h$P$l$kEE6K$r%3%$%k$N@0N.;R$K@\?($5$;!"H>2sE>$4$H$KEEN.$r5U$KN.$9$h$&$K$7$F$$$k!#?^$N>l9g!"(Ja$B$+$i(Jb$B$KEEN.$,N.$l$k$N$G!">e$+$i8+$F1&2s$j$K2sE>$9$k!#H>2sE>$9$k$H(Jb$B$+$i(Ja$B$KEEN.$,N.$l$k$h$&$K$J$k$N$G!"$d$O$j1&2s$j$G%3%$%k$O2sE>$rB3$1$k$3$H$K$J$k!#(J
$B!}EE<'N.NL7W(J
$B!!<'3&Cf$GF0$/EE2Y$K$ONO$,F/$/$3$H$rMxMQ$7$F7l1U$J$I$N1UBN$NN.B.$rB,Dj$9$k$3$H$,$G$-$k!#$3$N$h$&$JAuCV$rEE<'N.NL7W$H$$$&!#(J
$B!!B.EY(Jv$B$GN.$l$F$$$k1UBN$NCf$KEE2Y(Jq$B$N%$%*%s$,$"$k$H$-!"<'B+L)EY(JB$B$N<'3&$r$+$1$k$H(J
$B!!!!(JFB=qvB
$B$NNO$,2C$o$k!#$3$N$?$a%$%*%s$,0\F0$7$FJ,I[$KJP$j$,@8$8$k$?$a!"EE3&$,H/@8$9$k!#$3$NEE3&(JE$B$+$i%$%*%s$,
$B!!!!(JFE=qE
$B$G$"$k!#(JFB$B$H(JFE$B$OD`$j9g$&$+$i!JD`$j9g$&$^$G%$%*%s$O0\F0$9$k!K(J
$B!!!!(JE=vB
$B$H$J$k!#EE6K(Ja,b$B4V$N5wN%$r(Jd$B$H$9$k$H!"EE0L:9$O(J
$B!!!!(JV=vBd
$B$H$J$j!"N.B.$KHfNc$9$k$3$H$,$o$+$k!#(J

$B!!(J
$BEE6K4V$N5wN%$,(J5mm$B!"<'3&$N<'B+L)EY$,(J0.01T$B$NEE<'N.NL7W$r(J20cm/s$B$NB.EY$G7l1U$,N.$l$?$H$9$k$H!"EE6K4V$NEE05$O$$$/$i$K$J$k$+!#(J
$B!!(J
$B%H%C%W(J$B!!!!!!(J
$B"!$^$H$a(J
$B!{<'3&Cf$NEEN.$KF/$/NO(J
$B!!!!(JF=IB$B+1(J
$B!{%U%l%_%s%0$N:8
$B!{<'3&Cf$GF0$/EE2Y$KF/$/NO(J
$B!!!!(JF=qvB
$B%W%j%s%H$N%@%&%s%m!<%I(J$B!!(J$B!&!&!&9V5A$GG[I[$7$?$b$N$N(Jpdf$B%U%!%$%k$G$9!#(J
$B!!(J