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Simple Circuit

Is it possibl...

Question

Is it possible that any battery has some constant value of e.m.f. but the potential difference between the plates is zero?

A

No

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B

Yes, if another identical battery is joined in series.

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C

Yes, if another identical battery is joined in opposition in series.

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D

Yes, if another similar battery is joined in parallel.

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Solution

The correct option is A Yes, if another identical battery is joined in opposition in series.
When two battery connected in the opposite polarity in series have a total emf equal to the difference between them. If two battery are identical then potential between them is zero.
But this will easily burn the circuit quickly if no resistance is added as a precaution.

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