The emf of a cell is ϵ and its internal resistance is r. Its terminals are connected to a resistance R. The potential difference between the terminals is 1.6 V for R=4Ω

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The emf of a cell is ϵ and its internal resistance is r. Its terminals are connected to a resistance R. The potential difference between the terminals is 1.6 V for R=4Ω, and 1.8 V for R=9Ω. Then
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The emf of a cell is ϵ and its internal resistance is r. Its terminals are connected to a resistance R. The potential difference between the terminals is 1.6 V for R=4Ω, and 1.8 V for R=9Ω. Then and 1.8 V for R=9Ω. Then The emf of a cell is ϵ and its internal resistance [...]
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Tags: and 1.8 V for R=9Ω. Then , The emf of a cell is ϵ and its internal resistance is r. Its terminals are connected to a resistance R. The potential difference between the terminals is 1.6 V for R=4Ω ,