有这样一道题:如图所示,2秒内有3库仑正电荷和3库仑负电荷通过电解池正中截面yy’,问此电路的电流是多少? 有两种看法,一种看法认为,既然2秒内有3库仑正电荷和3库仑负电荷通过正中截面yy’,那末2秒内分别到达正、负极板上的负、正电荷应是3库仑,正、负极板 There is such a question: As shown in the figure, there are 3 Coulomb positive charge and 3 Coulomb negative charge through the middle section of the cell yy ’within 2 seconds, ask what is the current of this circuit? There are two views, one view that, since 2 seconds have 3 Coulomb positive charge and 3 coulomb negative charge through the median cross section yy ’, then within 2 seconds to reach the positive and negative negative, the positive charge should be 3 coulombs, positive and negative plates