The function of the system of granulated carbon mixed with manganese (IV) oxide in a...
PHYSICS
JAMB 1991
The function of the system of granulated carbon mixed with manganese (IV) oxide in a Letanche cell is to
- A. increase the e.m.f. of the cell to 2.0V
- B. prevent local action in the cell
- C. prevent polarisation in the cell
- D. make the cell black and hence a good radiator
Correct Answer: C. prevent polarisation in the cell
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