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

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in Chemistry – Class 12 by (188k points)
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

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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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