某理想变压器的原、副线圈按如图所示电路连接,图中电表均为理想交流电表,且R1=R2,电键S原来闭合.现将S疑问的是C选项中P1是如何计算的?如果用公式I^2R则P减小,如果用公式U^2/R则P增大
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![某理想变压器的原、副线圈按如图所示电路连接,图中电表均为理想交流电表,且R1=R2,电键S原来闭合.现将S疑问的是C选项中P1是如何计算的?如果用公式I^2R则P减小,如果用公式U^2/R则P增大](/uploads/image/z/3630300-60-0.jpg?t=%E6%9F%90%E7%90%86%E6%83%B3%E5%8F%98%E5%8E%8B%E5%99%A8%E7%9A%84%E5%8E%9F%E3%80%81%E5%89%AF%E7%BA%BF%E5%9C%88%E6%8C%89%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%E7%94%B5%E8%B7%AF%E8%BF%9E%E6%8E%A5%2C%E5%9B%BE%E4%B8%AD%E7%94%B5%E8%A1%A8%E5%9D%87%E4%B8%BA%E7%90%86%E6%83%B3%E4%BA%A4%E6%B5%81%E7%94%B5%E8%A1%A8%2C%E4%B8%94R1%3DR2%2C%E7%94%B5%E9%94%AES%E5%8E%9F%E6%9D%A5%E9%97%AD%E5%90%88.%E7%8E%B0%E5%B0%86S%E7%96%91%E9%97%AE%E7%9A%84%E6%98%AFC%E9%80%89%E9%A1%B9%E4%B8%ADP1%E6%98%AF%E5%A6%82%E4%BD%95%E8%AE%A1%E7%AE%97%E7%9A%84%3F%E5%A6%82%E6%9E%9C%E7%94%A8%E5%85%AC%E5%BC%8FI%5E2R%E5%88%99P%E5%87%8F%E5%B0%8F%2C%E5%A6%82%E6%9E%9C%E7%94%A8%E5%85%AC%E5%BC%8FU%5E2%2FR%E5%88%99P%E5%A2%9E%E5%A4%A7)
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