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一、电流强度[知识要点] 1.电流大小可利用电流热效应的大小判断. 2.电流的大小用电流强度(简称电流)表示,电流强度等于1秒钟内通过导体横截面的电量.若用I表示电流,Q表示通过导体横截
First, the current intensity [Knowledge points] 1. Current size can be used to determine the size of the current thermal effect. 2. The size of the current current strength (referred to as the current) that the current strength is equal to 1 second through the conductor cross-section of electricity. I represents the current, Q said through the conductor cross-section