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Two identical batteries, each of emf 2V ...

Two identical batteries, each of emf `2V` and internal resistance `r=1Omega` are connected as shown. The maximum power that can be developed across `R` using these batteries is

A

`3.2W`

B

`8.2W`

C

`2W`

D

`4W`

Text Solution

Verified by Experts

The correct Answer is:
C
Equivalent simple circuit is given as maximum power across R is obtained when
`R=r=0.5 Omega`
`i=2/(R+r)=2A`
`:. =i^2R=(2)^2(0.5)=2W`
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