電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(俗稱“馬達”)是(shi)(shi)指(zhi)依據電(dian)(dian)(dian)(dian)(dian)磁感應定(ding)律(lv)實現電(dian)(dian)(dian)(dian)(dian)能(neng)轉(zhuan)換(huan)或傳遞的一種電(dian)(dian)(dian)(dian)(dian)磁裝置。分為電(dian)(dian)(dian)(dian)(dian)動機(ji)(ji)(符號(hao)為M)和發電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(符號(hao)為G)。電(dian)(dian)(dian)(dian)(dian)動機(ji)(ji)(Motor)是(shi)(shi)把電(dian)(dian)(dian)(dian)(dian)能(neng)轉(zhuan)換(huan)成機(ji)(ji)械(xie)能(neng)的一種設備。它是(shi)(shi)利用(yong)通電(dian)(dian)(dian)(dian)(dian)線圈(也就(jiu)是(shi)(shi)定(ding)子(zi)繞組)產生旋轉(zhuan)磁場并作用(yong)于轉(zhuan)子(zi)(如鼠籠式(shi)閉合鋁框(kuang))形成磁電(dian)(dian)(dian)(dian)(dian)動力旋轉(zhuan)扭矩。電(dian)(dian)(dian)(dian)(dian)動機(ji)(ji)按使(shi)用(yong)電(dian)(dian)(dian)(dian)(dian)源不同分為直(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)動機(ji)(ji)和交流(liu)電(dian)(dian)(dian)(dian)(dian)動機(ji)(ji)。