基本信息
文件名称：A2 Physics 物理 出国英语Simple Circuits Part 2 - Current voltage and resistance.ppt
文件大小：3.15 MB
总页数：10 页
更新时间：2025-08-16
总字数：约1.84千字
文档摘要
CurrentElectronsusuallydriftinarandomdirection,butthereisnonetmovementofcharge.Currentisameasureoftheamountofchargemovingpersecond.I(A)=ΔQ(C)Δt(s)Electronsflowfromacircuit’snegativeterminaltopositiveterminal.However,traditionallycurrentisdrawnflowingin