Which of the following is not a requirement for a useful battery?(a) It should be light and compact(b) It should have a reasonable life span(c) It should ideally have a constant voltage throughout its lifespan(d) It should supply Alternating Current(AC)The question was posed to me in class test.Question is from Electrochemistry topic in section Electrochemistry of Chemistry – Class 12

Which of the following is not a requirement for a useful battery?(a) I

1.	Which of the following is not a requirement for a useful battery?(a) It should be light and compact(b) It should have a reasonable life span(c) It should ideally have a constant voltage throughout its lifespan(d) It should supply Alternating Current(AC)The question was posed to me in class test.Question is from Electrochemistry topic in section Electrochemistry of Chemistry – Class 12
Answer» Right choice is (d) It should supply Alternating CURRENT(AC) For explanation I would say: A useful battery is expected to be light and compact to be easily transported. It is expected to have a reasonable LIFESPAN to JUSTIFY its usage. Its voltage should not VARY APPRECIABLY during usage so that it doesn’t adversely affect the circuit it is used in. A battery supplies Direct Current(DC) and not Alternating Current(AC).

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