Wyznacz n ze wzoru :
I=nE/n r1+r2Odpowiedz mam - n= Irn/E-Ir1 prosze o rozwiązaniedam naj!
l= nE/(nr1+r2 ) /*nr1+r2
nE= l(nr1+r2)
nE= lnr1 + lr2
nE - lnr1 = lr2
n(E - lr1) = lr2 /:(E-lr1)
n = lr2/(E-lr1)
l=nE/(nr1+r2) /*nr1+r2
lnr1+lr2=nE
lnr1-nE=-lr2
n(lr1-E)=-lr2 /:(lr1-E)
n=-lr2/(lr1-E)
n=lr2/E-lr1 tak jak pisalas wynik to n=lr2/E-lr1 a nie n= Irn/E-Ir1
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l= nE/(nr1+r2 ) /*nr1+r2
nE= l(nr1+r2)
nE= lnr1 + lr2
nE - lnr1 = lr2
n(E - lr1) = lr2 /:(E-lr1)
n = lr2/(E-lr1)
l=nE/(nr1+r2) /*nr1+r2
lnr1+lr2=nE
lnr1-nE=-lr2
n(lr1-E)=-lr2 /:(lr1-E)
n=-lr2/(lr1-E)
n=lr2/E-lr1 tak jak pisalas wynik to n=lr2/E-lr1 a nie n= Irn/E-Ir1