1 某延長線接到一個 100 伏特的電源，延長線的電阻為 1 Ω。今將一額定 100 伏特、1000 瓦特的微波爐，與一相同額定值的電熱器同時插到延長線的兩個插座上。試問微波爐所消耗的功率約為多少瓦特

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1 某延長線接到一個 100 伏特的電源，延長線的電阻為 1 Ω。今將一額定 100 伏特、1000 瓦特的微波爐，與一相同額定值的電熱器同時插到延長線的兩個插座上。試問微波爐所消耗的功率約為多少瓦特？
(A)1000
(B)850
(C)700
(D)500

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