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. 7.13. .!; . (), () ()

. . 7.12 7.13 , . :

( + -f -f [( 1 - ) 4- /? 1

(arK-i- 11

~{R. -f , + .,-f /?)-f /-1(! -+ RA

/?== + ( 1--i--j-!.

r, + re,-YR«l

:

(1-)-., + /?

-( -)/?

~ , ( + /?) + [( 1 - ) « + , + /?1

- (--»)/?

,(/- + /?)-ܹ + «)[(1 a)r+r,-f/?)

.. = .+;f-).

:

Ä(-/?)

r(l-a)-fr, + /?

rK(r,-f«)-bre[r(l-a)+r,«]-

/(l-a)-fr, + /?

/(, + /?)+(-6 + /?«) 1« (1 - Q) + , + /? J

- , -\--------.

r + r6 + R« 7.29.

. ( 1) = 400 . ? = 25 , = ==1- / , /? = 34,946 , = 2,534-10 /(, = 0.9751. /139,519 Kg= = 36,130. ( 2) = 400 , ,=25 , = = 1-10 , /?=1000 , =0,98 /? = = 5000 /?..= 1403,996 , /? =3,722-10 , /,--=-39.16. A,; = = - 139,459 /(f=-81,447 ( - ). ( 3) = 400 , ,=25 , = = 1-/ , /? = 1-10 , = 0,98 /? = = 500 /? =2,598-10 , /? = 2,309-10 , ./(, = 48,721, /(=0,9377 > = 0,6771.

. (. [34]). , . [40].

(. 7.14, ) .

1. ; R,, R, Rn, /?,



le PRIHT

20 PRINT , 1

30 PRINT , 2

40 PRINT , 3

50 INPUT R1=R1

60 INPUT R2=R2

70 INPUT R3=R3

75 INPUT R=R

80 INPUT - =

85 INPUT RN=R8

90 INPUT N

188 IF =1 THEN 148

lie IF =2 THEN 208

128 IF N=3 THEN 268

138 PRINT s 60T0 98

148 LET V=R3+R1+R8 s LET R4=R2+Rl!«<<l-A>s«R3+R0>V

158 LET X=A»R3+R1 : LET K1=XV

168 LET K2=<Xs«Re><R2s«V+Rl»R3s«<l-ft5+Res«Rn.

170 LET K3=Xi*Re.<<R+R2>s«V+RU«R3s«<l-A>+ReitiRl>

188 LET R5=R3+R1!«<1-X.<R2+R1+R>>

198 CiOTO 31 e

280 LET M=R3s«<l-A)+R2+R8 SLET R4=R1+R2«<R3+R8>.M

210 LET N=Ai«R3-R2 s LET K1=-NM

228 LET K2=-Ns«Re<R2s«<R3+R0)+Rls«M>

230 LET K3=-Hi«R8<CR2*<R3+Re> + CRl+R)s«f15>

240 LET R5=R3itia-A>+R2!«Cl + (A«R3+R2V<:R2+Rl+R>>

258 CiOTO 310

268 LET X=R2+R8 s LET V=R3*< 1-A>+X s LET R4=Rl+R3s«XV

270 LET K1=R3V

280 LET K2=R3»R0<R3*X+R1*V)

298 LET K3=R3i«R0.CR3!«X+<Rl+R>«V5

388 LET R5=R2+CRl+R5i«<,R3iti<l-A>CR3+Rl+R>)

310 PRINT R=R4

328 PRINT R=R5

338 PRINT KI=K1

348 PRINT KU=K2

358 PRIHT K2=

360 GOTO 90 ! END

. 7.14. () ()


Ru, /?, , љ, Ci , , S .

2. /?. = /? /?, = /? 11 Rc=Re/?/(/? + Rc) .

3.

£ /? Rc Rk

£.1 RcH Rc -+ Rc4 Rm+Rc Ru

R,+R,

4. ;

= j -f ,(1 + ,)\ Rr R,nR. f

=(/?/?/?) (-fCc»), . == /?[, -f :,, љ/{,, -f ,), ---.

5. ~ =Tbj.o /?, .

ф (, ) <;0,25 .



6. /=2,21-2 D = =5/2,2( + .).

7. {)={\+:,-\-%,)~

8. \ = (Rr + Rs) Ci,

Ts= 2, T=(/?l/S) ф.

9. / , = = //1, 2=</2, = </ =,4-24-. /?=0, = 0.

7.30.

3. =

= /?1(1 -/C[/,)+C,cJ, == (/?!!/? II1/S) ф, (, = /? (--) =-.

4..

= ./-

5. 0,25, ( = 0,25-), fB = 2,2T3KBVl--2m.

6. > 0,25, /() = =(1++ )-, .

16 PRINT

20 INPUT R3/RC,RCHRbR2..R3

30 Rr,RH,RHR4,R5fR8

40 INPUT ,,2,

45 2,4,5,6

50 INPUT S=S

60 LET R6=Rl!LET R7=R3s«R2CR3+R2>

70 PRINTR BX0flA=R6!PRINTR 0=7

80 LET A=R2itiR3s«R5/<R2s«R3+R2s«R5+R3i«R5>

0 LET K=<Rl<Rl+R4)>s«S!«A:PRINTKU=K

100 LET Kl=Si«A!LET 1=<1+2(: l+KlJJs«R4s«Rl.CR4+Rl>

110 LET T2=<C2+C3)«A:LET =41+2-C2+C3> )

115 PRINT TBX=T =2

128 LET T4=Tl+T2i!LET M=T3*T2T4-2

130 PR INT H< P )=1 a +4+-24-2 )

140 PRINTT4=T4!PRINTM=M

150 LET T5=2.2itiT4*SG!RCl-2i*M):LET D=S2.2<C1+C3> 160 PRIHTT =5!PRINT = 170 PRINT 180 1£ T6=<R4+Rl>C4sLET T7=iLR2+R5:)i*C5 10 LETT8=C6s«R8 < 8£+1 >

200 PRINTTBX=T6/=7/ .=8 210 INPUT =6

220 LET21=T0T6!LETZ2=T0T7:LETZ3=62IF 3>0 THEN LETZ3=T0T8 230 LET Z=Z1+Z2+Z3

240 PRINT Z=Z 250 C-iOTO 210! END

. /?=0 , Rc= =2-10 , /?=0= , /?=0 , 1 10 , /?= 1 10 , = 10-10-= , ф=0-= , = 5-10-= , ,= = 0.1 10- , -2= 1 10- , ф = 100-10- , 5 = 5-10- / R = \-\(f , /?= 1,961-10 , =-8,, = = 1,918-10-» , = 9,836-10- , = = 4 = 2,900-», = = 1,266-10-, i = = 5,516-10-» , 0=1,515-10» 1/, ,.== = 1,001-10- , 2 = 1,2-10-= , = = 1,667-10-2 , =100-10- , .\ = =2=1,533-10-.

( ), (. 7.14,6), .

1. : Rs, /?, Rr, Rm , ф ( ф ) S.

2. Kv - SRm/{l +SRkh), Ruk = R«Rh/{R.+,Rv), Ku=R.Kuo/{R + Rr). /? = /? /? = /?(1/5) =

=R«/{l+SR«) .

ci=Ci(/?r + /?3), 2 = 2(/?, + /?) = //1 + + 2 U.

7.31.

. /?=0" , /? = = 2-10 , R,= l.\(f , /? = 0 , =10-10-= , =1-10-= , ф = = 100-10-= 5 = 5-10- / /?=1-10 . /?, = 1,818-10= , Kv = = 0,892, = 2,071 -10- , = 1,790-10- , = 1,993-10-» , =0,495 (

) = 7"4).

( 1 ) . - (. 7.15) .

1. : 2 2, N, -



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0.0432
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