Elektrotehniskie pamati

G78 = 1/(R_7+R_8 )= 1/(5+20)=0.04 (Ω)
( A ) φA * (G78 + G13 + G2 + G4) – G4 φB – G78 φD = G78 E3 – G2E2 – G13E1
( B ) φB * (G4 + G6 + G5 ) – G4 φA – G6 φD = 0
( D ) φD * (G78 + G6 ) – G6 φB – G78 φA = – G78 E3 – J
Ievietojam skaitliskās vērtības
( A ) φA * (0.04 + 0.026 + 0.02 + 0.022) - 0.022 φB – 0.04 φD =
= 0.04*30 - 0.02*10 - 0.026*12
( B ) φB * (0.022 + 0.015 + 0.066) - 0.022 φA – 0.015 φD = 0
( D ) φD * (0.04 + 0.015) - 0.015 φB – 0.04 φA = – 0.04 * 30 – 0.4
( A ) 0.108 φA – 0.022 φB – 0.04 φD = 0.688
( B ) - 0.022 φA + 0.103 φB – 0.015 φD = 0
( D ) – 0.04 φA – 0.015 φB + 0.055 φD = -1.6
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