自由电子=电荷吗?
更新1:
最好用中文答!
自由电子=电荷吗?若等于
可但一库伦的电荷约等于600亿亿粒电子
自由电子不就是电子吗? Electrons are particles that carry negative charge. The charge carries by an elecro is -1.6x10^-19 coulombs. Thus free electron is NOT equal to charge. 若不等于
但电子的单位又是库伦
这么一库伦自由电子又等于什么? This sentence [电子的单位又是库伦] is incorrect. Electrons exist in individual particles. The coulomb (库伦) is a unit for charge (电苛).
不如叫你父母比钱你补习啦
系到比人教错你就唔好
Your make some mistakes
electrons do have charge (电荷)
even they are free or not
an object carrying charge(s) does not mean it is carry (free) electronic(s) or not. Say holes (positive charge with effective mass same as electron)
positron (anti-particle of electron)
or just simply proton (same charge value but oppsite sign
1 electron charge = -1.6 x 10^(-16)C
while 1 proton carry 1.6 x 10^(-16)C ). 1C of free electron charge is simply a number of electrons with total charge 1C
that's all
nothing else. C was used before the discovery of electron
it is a unit to measure charges. Same as A (ampere
1A=1C/s
1 C per second)
it was used long long time ago in electric. C is used for all charges
it is not electron
but electrons do carry charges. 2008-08-27 08:55:41 补充: Maybe it is not clear for using english to wer this question. C is the unit to measure charges
charge is not C
C is a measure of how many charges there. 2008-08-27 08:55:49 补充: C is a unit same as kg
where kg is a measurem of how heavy the mass is
but it is not mass itself. You can use kg
lb
amu and etc to tell how heavy the mass is. This is the same as the case of C.
自由电子/电子所戴住的是电荷/电量
就等于人戴住钱.但人不等于钱. 自由电子是电子
但电子可分自由同不自由
so电子不等于自由电子. 正因自由电子是电子
so都戴住电荷[email?protected]而电荷单位是库伦[email?protected] ***不是电子单位是库伦
电子是以粒做单位*** 库伦同打一样.一打笔十二
一打蛋都系十二. 所以
一库伦电荷等于600亿亿粒电子所戴的电荷量.
参考: 考完会考人士
不一样
自由电子是所有金属材料里原子核外的最外层或次外层电子提供出来形成电子云,归整块金属公有,称为自由电子.
金属能够导电,就是靠自由电子.自由电子也属于自由电荷,带负电;
自由电荷范围比自由电子广,它包括正、负离子和自由电子,分别带正负电荷.
可以说,金属导体中的自由电荷是自由电子,酸碱盐的水溶液中的自由电荷是正、负离子.
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