Question

Difference between local action and polarisation

Answer 1

Answer: The terms local action and polarization are used to name two types of defects in batteries. These are found in simple electric batteries. These defects reduce the practical value and performance of these cells (or batteries). Local action of a battery is the internal loss of battery due to local currents that flow between different parts of a plate. These local currents are produced by chemical reactions. Polarization is the termination of the cell reaction in the battery due to the collection of hydrogen gas around the positive electrode. The key difference between local action and polarization is that local action can be minimized using pure zinc whereas polarization can be minimized using a depolarizer such as manganese oxide