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R1=U^2/p1=220*220/40=1210 R2=U^2/P2=220*220/100=484 串聯後接在220V電路中,功率和電阻成正比.L1的電阻大,功率大,更亮一些. 很高興能夠幫助你.請你及時採納.不明白的地方可以追問.其它問題另行提問,我會及時給你解答.
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