037

P = P   Up * Ip = Us * Is

┘

026

De stroom I2 is

a   4 A
b   1 A
c   0.5 A
d   2 A

n = Is/Ip  
Is = Ip /n = 2 /1 = 2 A

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P = U x I
Pp = 100 x 1 = 100 W

P = P  100 = 100 W

I = P / U  100 / 50 = 2A