某电熨斗的铭牌上标有“型号223E 220V 50HZ 1000W”的字样.问:(1)它工作时的电阻为多少?(2)若它内部需要串联保险丝,则分别标有“3A”、“5A”、“15A”字样的保险丝中,那一种较为适合?(
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![某电熨斗的铭牌上标有“型号223E 220V 50HZ 1000W”的字样.问:(1)它工作时的电阻为多少?(2)若它内部需要串联保险丝,则分别标有“3A”、“5A”、“15A”字样的保险丝中,那一种较为适合?(](/uploads/image/z/10237176-0-6.jpg?t=%E6%9F%90%E7%94%B5%E7%86%A8%E6%96%97%E7%9A%84%E9%93%AD%E7%89%8C%E4%B8%8A%E6%A0%87%E6%9C%89%E2%80%9C%E5%9E%8B%E5%8F%B7223E+220V+50HZ+1000W%E2%80%9D%E7%9A%84%E5%AD%97%E6%A0%B7.%E9%97%AE%EF%BC%9A%EF%BC%881%EF%BC%89%E5%AE%83%E5%B7%A5%E4%BD%9C%E6%97%B6%E7%9A%84%E7%94%B5%E9%98%BB%E4%B8%BA%E5%A4%9A%E5%B0%91%3F%EF%BC%882%EF%BC%89%E8%8B%A5%E5%AE%83%E5%86%85%E9%83%A8%E9%9C%80%E8%A6%81%E4%B8%B2%E8%81%94%E4%BF%9D%E9%99%A9%E4%B8%9D%2C%E5%88%99%E5%88%86%E5%88%AB%E6%A0%87%E6%9C%89%E2%80%9C3A%E2%80%9D%E3%80%81%E2%80%9C5A%E2%80%9D%E3%80%81%E2%80%9C15A%E2%80%9D%E5%AD%97%E6%A0%B7%E7%9A%84%E4%BF%9D%E9%99%A9%E4%B8%9D%E4%B8%AD%2C%E9%82%A3%E4%B8%80%E7%A7%8D%E8%BE%83%E4%B8%BA%E9%80%82%E5%90%88%3F%EF%BC%88)
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