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.
Galvanneal steel includes the process of galvanizing with an added step â after the zinc coating, the steel is heated to around 1050Â° Fahrenheit. This process of extreme heating draws more of the iron out of the steel and causes it to mix with the zinc. The finished product has an alloy coating of approximately 90% zinc and 10% iron. In the realm of steel doors and frames there are three types of galvanized and galvanneal steel used â A40, A60, and G90. The differences in the three are based on the percentage of galvanneal coating per square foot and the protection they offer.