jj_08_01_001v_005 Casio fx-82NL
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Rs = Um/(Ib-Im)
Rv = 1/[ 1/20 + 1/5] = 4 Ohm
U=I x R 20mA x 4 = 80mV
20 -3 x 4 0.08
ENG-notatie
80
exp-3
= 80 milli-volt
Im = 80mV/20 = 4mA
80 -3 20 0.004
ENG-notatie
4
exp-3
= 4 milli-A