P=IU=0,4•220=88 Вт=0,088 кВт
А=Pt=0,088•3=0,264 кВт•ч
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P=IU=0,4•220=88 Вт=0,088 кВт
А=Pt=0,088•3=0,264 кВт•ч
Verified answer
P = lUP = 220 * 0,4 = 88 ( Вт )
A = Pt
A = 88 * 3 = 264 ( Вт * ч ) = 0,264 ( кВт * ч )