Evaluation Only. Created with Aspose.Words. Copyright 2003-2022 Aspose Pty Ltd.2．两个电阻值完全相等的电阻若并联后的总电阻是10欧姆则将它们串联的总电阻是［ ］ A．5欧姆 B．10欧姆 C．20欧姆 D．40欧姆 3．一条导线的电阻是R把它对折分成等长的两段后再把这两段并联
