When 3 batteries having EMFs E1, E2 and E3 respectively are connected in series, what will the value of voltage measured across the combination?

E1 + E2 + E3

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E1 X E2 X E3

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E1 X E2 + E3

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None of the above

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Solution

The correct option is A
E1 + E2 + E3

When the cells/batteries are connected in series, the equivalent EMF across the combination will be equal to the sum of the individual EMFs.

So, the voltage across the combination will be equal to E1 + E2 + E3.

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When cells are connected in parallel having EMF E1 E2 and so on but the resultant EMS is e so I want to ask why EMF is not additive in this case why in series combination EMF gets added

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