andré-marie ampère (1775-1836) french physicist, engraving, published in 1882 - 安培值 幅插畫檔、美工圖案、卡通及圖標雕刻圖像, 物理學家
antique illustration, physics principles and experiments, electricity and magnetism: ampère magnetism theory - 安培值 幅插畫檔、美工圖案、卡通及圖標
ammeter, multimeter, voltmeter icon. instruments for measuring electric current.electricity, scientific experiment, measurement, current measurement, wired device - 安培值 幅插畫檔、美工圖案、卡通及圖標
rheocord , metallic wire used in measuring the resistance of an electric current. - 安培值 幅插畫檔、美工圖案、卡通及圖標電線, 電工, 半導體