Question

Answer the following questions in one word or one sentence.
5.
What forms the negative terminal of a dry cell?​

Answer 1

Answer:

metallic zinc-can anode

Answer 2

Explanation:

Dry cells have limited capacity—not much current can flow through the small amount of fluid available so larger batteries with a liquid are used in automobiles and other high current applications.Dry cells come in many varieties. Some can be recharged. The chemical reaction discharging the cell will even go on slowly if the battery is not connected to a load, so the so-called shelf life is limited. Modern batteries have a longer shelf life than older ones, but one should be suspicious of batteries older than a year. The self-discharge is accelerated at higher temperatures, so batteries should be stored in a cool place. In a dry cell one of the two electrodes is the case, so when the battery discharges, the case becomes thin and can eventually leak. The leakage material can damage equipment, so ordinary dry cells should not be left in unattended equipment. The small dry cells used in watches and other electronic equipment have a strong metal case, so leakage is not a problem. Aside from keeping dry cells cool and watching for leaks, no maintenance is necessary. Incidentally, when dry cells are being discharged heavily, gas forms around the carbon electrode, lowering the output voltage. If the dry cell is “rested,” this gas dissipates, and the dry cell recovers some of its voltage. Dry cells have limited capacity—not much current can flow through the small amount of fluid available so larger batteries with a liquid are used in automobiles and other high current applications. These are called storage batteries.