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A battery has an open circuit potential ...

A battery has an open circuit potential difference of `6V` between its terminals. When a load resistance of `60 Omega` is connected across the battery,the total power supplied by the bttery is `0.4 W`. What should be the load resistance `R`, so that maximum power will be dissipated in `R`. Calculated this power. What is the total power supplied by the battery when such a load is connected?

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