engineering recuitment BSPHCL JE Electrical 2024 Mock Test Utilization of Electrical Energy Cells and Batteries
Which of the following statements about the zinc-carbon cell is true?
1
The zinc container has a potential of 1.5 V against the carbon electrode
2
The air in the air space needed for the oxidation of zinc
3
When the current is drawn from the cell, the carbon rod is partly consumed
4
The depolarizer mainly contains brown iron ore and carbon powder