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a)
d:
R=0,4
I=0,55
sz:
u
R
U=RXI
U=0,22V
P=UXI
P=0,121V
B)
DANE:
P=1000W
U=220V
SZUKANE;
I
ROZWAIAZANIE:
I=P:U
I=4,5A
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