U1=220 B P1=2200 Вт I2=1 A k=?
I1=P1/U1=2200/220=10 A k=I1/I2=10/1=10
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U1=220 B P1=2200 Вт I2=1 A k=?
I1=P1/U1=2200/220=10 A k=I1/I2=10/1=10
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