| | uqpxrpu| , rqyp rur {}qy~py {|uz . E|y y|xrp t| pq |u{yu{y uqpxrpu|uz r ~pz{y yrtp ~ps~upu| yx}u~u us y}y . D| }yrp~y px . K|yur rtr }~s ~r zr wu~y r~ rpwu~~} }uw~} {~} ~~s {p , {|y |p ~yrp~yu} p~xyr ur|u u} tu|u~y ~pwu~y xptp~~z } . t . Tpr|yz ys~p| qp~z rxy yxrtyu|~y) y ~p~} pq{p}y ~p~s psuspp p{y} p{} }s pqp xpp~uu pr|u~~} spy{} (qux qp~z rx |u{yu{yz }t| utpr|u qz y~ru y|xu {rptpy~p xpryy} ~pwu~y/p (U/f2=const) . B }~sy q|p yrt~z u~y{y ru utrpyu|~u y|utrp~y {y rpu~y tryspu| ur|u ~pt {y xu~y u}u~y{y r pr}pyu{} uwy}u xp}ut|u~y/}wu~y |u{tryspu| , r{|p rx}w~ r|u~y ~~z pz rpu~y ( { r { rty yy y|y y~} q} . B}uu ~~z pr|uz ~pwu~y . Pyu} t|yu|~ y}|r {}}pyy . Hpu} pxryyu ~r zr wu~y qp~}y rx}y . Xpu rus , ~ ~py}u , yx}u~u~yu |ryz pq {~}y y{r} { u r u|} y yu} quuuqz~s yp~y . Py uru~~ u ~usyy . B{}~u upx~u y~ru ~p rtu uqpxrpu| pu y|xrp|y tryspu| , ru|yy }~ uqyu| , {|{ rt~p pp uqpxrp~y |p ru yx}u~u~y {y rpu~y . E|y sp~yxrp pq {}ur@u}~ uqpxrpu|uz uqpxrpu| , xptrywu{ , Su|ru uy . O~ quuyrpu px|y~u uwy} pr|u~y ~urx}w~ qux rt~s {p ru~~u tpy{y |wu~y r ty~p}yu{yu su~y , t| typpx~p ~pwu~y xru~p ~~s {p . Pr|u rx}w~ pu~y y s|prp~yu trywu~y ~u{|{y t~px~ y~rur , ~py}u t| pr|u~y ~u }wu q up|yxrp~ t| quuu~y }p{y}}p tpw ~urx}w~ z q , xr|yu up u} y|xrp~y ~uus|yu}s |u{yrtp . R ~|ur} rrt} p~}pp , pqp q|wyrp~yu} psuspr pr~u~y } r{p~s uqpxrp~y ru|yu~yu} {y yrtp }w~ y upx~s r}yu| (yyp) {}p~yuz General Electric r ~pwu~yu y~ytp|~z }z rt~s ~pwu~y } p~s uqpxrpu| , ~ y tuur xp}u~ r u}u py~~~} |u{tryspu|u} , p xpu} s|pwyrpu y r ur uut r qrtp uuz . ^ uqpxrpu| {y xu~y u}u~y{y r ~pz{y u~|syu{s up . @~p|yx uqu}s yx}u~u~y {y , r|{y , ypy}y qus y | r|~ ~p~u pp{uyy{y t| yp~y y ruu~yu p . Qus|yrp~yu rt~s ~pwu~y t| tp|~uzuz }tu~yxpyy . Dp~~p q|u}p ~u xtpu . K~ qp~z rxy , rtus r } , p xpu} s|pwyrpu , xpu} r~r uqpxu y~ru} r |u{yu{ u up|~s ru}u~y . Bu{~u pr|u~yu yrt} ruz yu} , yu} }wu
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