一、梳理重点电量、电流、电压、电阻、电功、电功率等物理量是电学六个基本物理量,它们是贯穿整个电学的主线,对于这六个电学基本概念,我们可以列出以下表格类比记忆二、剖析难点1.正确理解电阻这一物理量电阻是表示导体对电流阻碍作用的物理量,是导体本身的一种性质,其大小只 First, combing the key quantities of electricity, current, voltage, resistance, electrical power, electrical power and other physical quantities are the six basic physical quantities of electricity. They are the main lines throughout the electricity. For these six basic concepts of electricity, we can list the following table analog memory II. Difficulties in the analysis 1. Correctly understand the resistance This physical quantity resistance is the physical quantity that represents the conductor’s resistance to current. It is a property of the conductor itself, its size is only