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A Lechlanche Cell of e.m.f. 1.4 V is co...

A Lechlanche Cell of e.m.f. 1.4 V is connected to the primary of a transformer of turn ratio` 10 :1` . The output voltage is

A

`20 V A.C.`

B

`0.2 V A.C`

C

`20 V D.C `

D

`0 V`

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