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The e.m.f. of a cell is 1.3 V. The posit...

The e.m.f. of a cell is 1.3 V. The positive electrode has a potential of 0.5 V. The potential of negative electrode is :

A

0.8 V

B

`-0.8 V`

C

1.8 V

D

`-1.8` V

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The correct Answer is:
B
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