Question

From the given cells:
Lead storage cell, Mercury cell, Fuel cell and Dry cell
Answer the following:
(i) Which cell is used in hearing aids?
(ii) Which cell was used in Apollo Space Programme?
(iii) Which cell is used in automobiles and inverters?
(iv) Which cell does not have long life?

Answer 1

(i) Mercury batteries are used in the shape of button cells in hearing aids.

(ii) A fuel cell power generation system with liquid hydrogen and liquid oxygen reactants was used in Apollo Space Programme.

(iii) lead–acid batteries is used in automobiles and inverters.

(iv) Dry cell does not have long life.