A battery has an emf and an internal resistance r when the, Physics

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A battery has an emf and an internal resistance r when the

A battery has an emf and an internal resistance r. When the battery is connected to a 20 ohm resistor, the current through the battery is 0.60A . When the battery is connected to 60 ohm resistor, the current is 0.45A . Find the battery's emf. Find the battery's internal resistance.

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Physics: A battery has an emf and an internal resistance r when the

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Physics: A battery has an emf and an internal resistance r when the

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