Answer:Oxygen
Explanation:
Oxygen gets reduced when iron is oxidized.
By decreasing n we can increase presure because decrease in n will shift equilibrium to either forward or reverse direction
Negative because it'll have to gain an electron
I think the answer is that is lights up?
More the number of turns, more will be the magnetic field produced.
Hence wire A will have magnetic field greater than wire B.
Hope this helps!
