The function of the system of granulated carbon... - JAMB Physics 1991 Question
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 option: c
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