An Overall View An action potential is produced by the movement ofions across the membrane through voltage-gated chan-nels. This ion movement, which occurs only when thechannels are open, changes the distribution of chargeson either side of the membrane.
exists and is an alternate of. Merge this question into. Split and merge into it. Answer by Robbb. Confidence votes 86.8K. Zinc is used in galvanizing because zinc can be made to stick to iron and does not rust. In addition, when you cut it, the zinc will cover the iron at the point where it is cut.The whole process makes sheet iron last much longer.xists and is an alternate of. Merge this question into. Split and merge into it. Answer by Robbb. Confidence votes 86.8K. Zinc is used in galvanizing because zinc can be made to stick to iron and does not rust. In addition, when you cut it, the zinc will cover the iron at the point where it is cut.
There are major safety concerns attached when welding galvanized steel. Galvanized refers to the coating of zinc on to steel. Zinc oxidizes to protect the steel near it which means, even if the galvanized steel surface is removed due to scrapping or scratching down to the bare steel, the galvanized coating will prevent rust from occurring. 1. Metal Fume Fever. When welding galvanized steel the zinc coating vaporizes and mixes with the air to form zinc oxide fumes.