005-Vermogen-013-Casio-fxs-82NL
Stel R1 = 20 Ohm
R2 =40 Ohm
Stel U = 30 volt
start:
Rt = R1 + R2
Rt = 20 +40 = 60 Ohm
It = U / Rt
It = 30 / 60 = 0.5 A
P = I
2
- R
P1 = 0.5
2
* 20 = 5 Watt
P2 = 0.5
2
* 40 = 10 Watt
┘
0.5 x 40 10 Watt
0.5 x 20 5 Watt