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2010-02-24T21:04:25+01:00
I1=100A
U1=2200V
U2=22000V
I2=?
I1/I2=U2/U1
220I2=2200/: 220
I2= 10 A.


;)
2010-02-24T21:04:34+01:00
Uw/Up = Ip/Iw

22000V/2200V = 100/x
22000x = 220000 A / 22000
x = 10 A



2010-02-24T21:06:18+01:00
Witaj
dane J1=100A, U2=220 000V, U1=2200V
szukane J2
przy braku strat energii
P1 = P2
J1*U1 = J2*U2
J2 = J1*U1/U2 = 100A*2200V/220000 = 10A

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