Question

Three disadvantage of dry cell

Answer 1

1. it is not re useble
2. it drains faster
3. it cant use for long period of time

Answer 2

EXPENSE

Dry cell batteries are categorised into two broad categories : primary and secondary. Primary batteries cannot be recharged. They transfer their stored energy to the equipment using them irreversible pattern. Secondary batteries transfer their energy in a pattern that can be reversed and can therefore be recharged. Primary batteries are less expensive than secondary batteries, but must be replaced, adding to their expense in long run.

EXPLOSION AND CORROSION

Dry cell batteries are prone to explosion if handled improperly. Never throw batteries into the fire. Attempting to recharge a disposable battery also runs the risk of explosion. When replacing dry cell batteries, replace all batteries at the same time. Mixing old and new batteries increases the likelihood that the batteries will weak.

ENVIRONMENTAL AND HEALTH CONCERNS

Dry cell batteries contain a number of toxic substances that can cause health problems and also present serious environmental concerns. These substances include nickel, cadmium, mercury, zinc, lead and lithium.