JAMB - Physics (2022 - No. 9)
Which of the following is not a consequence of hydrogen bubbles covering the copper plate of a primary cell?
formation of hydrogen bubbles on the electrode
increase in the resistance of the cell
local action
polarization
Vysvetlenie
If the zinc used in the simple cell is of the impure commercial variety bubbles of hydrogen will be seen coming off the zinc. This is called local action.