Предмет: Физика, автор: Аноним

В сеть с напряжение 120 В включены две электрические лампочки с одинаковыми сопротивлениями по 200 Ом. Какой ток пройдет через каждую лампочку при их парралельном и последовательном соединении?

Ответы

Автор ответа: Аноним

при парралельном соединении 1/R=2/200 ; R=100 Ом : ток I =U/R=120/100 = 1,2 A

при последовательном соединении R =200+200 = 400 Ом ; ток I=U/R=120/400=0,3 A

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