Electrical resistance is a measure of the degree to which an object opposes an electric current through it.The SI unit of electrical resistance is the ohm.Its reciprocal quantity is electrical conductance measured in siemens.Electrical resistance shares some conceptual parallels with the mechanical notion of friction.
which means The ability of a material to oppose the flow of an electric current ,converting electrical energy into heat.The SI unit of resistance is the ohm .
猜你喜欢
- 1_____for the timely investment from the general public ,our company would not be so thriving as it is.
- 2若一个菱形的边长为2，则这个菱形两条对角线的平方和为_．
- 3View on Good Manners in Public Places,有三点要求:
- 4如图1所示，质量M=1.0kg的木板B静止放在水平地面上，质量m=0.5kg的电动玩具小车A位于木板的左端．小车从静止启动后匀加速地向木板右端驶去，小车对木板的作用力使木板也同时开始运动，
- 56亿个碱基对的DNA的直线长度是多少?
- 6请问二氧化硫,氢氧化钠溶液是电解质吗
- 7狮城是中国哪个城市
- 81 （a+b）（a的平方-ab+b的平方）
- 9yi ren li zhi ,wan fu mo di 翻译成汉语是什么
- 10Sally usually goes to schoo by bike.改成肯定句