(.1.7, ), (.1.7, ) (.1.7, ) ().
) ) )
.1.7.
:
- c ;
- U=U1+ U2+ U3;
- () R= R1+ R2+ R3.
:
- Uab=U1= U2= U3.
- ()
1/R= 1/R1+ 1/R2+ 1/R3.
R= 1/ (1/R1+ 1/R2+ 1/R3).
R=R1∙R2/(R1+R2)
, , .
, , .
R=R12+R34.
R12= R1∙R2/(R1+R2), R34= R3+R4