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# /6 * /

# : # # (# &' ("#$, . ". / ( % 6, "

#$ * K2,

"" ' * K1, # +

/

("#$ * , *+

4, ( "# ! "#% : ) +" /% +

"3&/

! " # " " 0 ( " (# "&" ' # : # #; " ) " + .

 

#$ *

"

# : # #

<

(# ( #, 0

/

,

"& " 0, < (# "&"$ *

È2= 2K1/K2= 1 = 1. (#'3" " (# "&"$

*

Ù2f2= U2.

 

 

 

 

 

 

 

 

 

 

 

 

B# "&" " ) " " # % $&"

) / ' ( ' ($

4, . ". ( '

4 0

(# "&"$ #$ * & 3

0 '

#$ ($ 4 &"$" 0$ #$ *

Ù2f2 = U2I2, /& f2= U2I22

=

I2/n.

 

 

 

 

 

 

 

 

 

 

 

 

 

" (# " " (# "&"$ #$ *

# : #

# $&"

)

/ ' ( ' ( "#0 (#

(# "&" !$

*

, . ". (f2)2 R2

= I 2 R

 

 

 

 

 

 

 

 

 

 

 

 

2

2

 

/& R2= 2R2.

 

 

 

 

 

 

 

 

 

 

 

 

&/ " (# " ", 3" &/ 0, (# ( #, 0 /

, "& " 0, &/ " (# " " (# "&"$ #$ *

 

(#"&" ' &" h' = 2X2.

 

 

 

 

 

 

 

 

 

 

#. 2.7. ( ) " # ' & %#

& ' %#/) &/ % ( )

 

 

E

(9) 2 # "#. ( 3 " 0

(# " % # ) 0$

 

-" %2

) *# 3" " # ( /&+ % ( # : # # H .

 

# /

("#"3" 'I

" 0 " # H /% ( "# / " # 2 % 2 & I0

 

2

 

 

 

E2

 

 

 

 

 

 

 

 

# / ' " 0 " # Hm s/2 - " #+ < ("#$

(# "&"$ * 1 =

. # / ' (# &/

( ) # /

("#"3" '

(#

"

(*)

2 # "#"

%#/) /%

j2

( "# /

" #

 

 

&

&

&

&

&

&

(# "&" %

# %

 

 

 

U

2 = E2

I2 R2

jI2 X 2

= E2

I

2 Z2

" 0 " #

. (#'3" " ) 3

2 #$ * # : # # (#

%#Ì/) " $&" ' < #$ *

 

/ ( &" " (#'3" '

&/

(# " '2 !$ * , . ". /# " " # " ' < & ' #$

* # : #

# "" "&/64$ &:

 

 

 

 

 

 

 

 

 

 

 

(2.6)

 

 

 

 

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