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Two identical batteries each of emf E= 2...

Two identical batteries each of emf `E= 2` volt and internal resistance `r=1` ohm are available `t`. produce heat in an external resistance by passing a current through it. What is the maximum power that can be developed across an external resistance `R` using these batteries?

A

`3.2 W`

B

`2 W`

C

`1.28 W`

D

`8/9 W`

Text Solution

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The correct Answer is:
B
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