AP Physics 2
11.1 Electric Current
Inside a gas discharge tube operating under steady-state conditions, positive ions each carrying charge \(+e\) move to the right through a cross-sectional area at a rate of \(n_1\) ions per second. At the same time, electrons each carrying charge \(-e\) move to the left through the same cross-sectional area at a rate of \(n_2\) electrons per second. Which of the following correctly gives the magnitude of the net conventional electric current \(I\) through this cross section and provides the correct physical justification?
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