A marine battery has an emf of approximately 12.5 V and an internal resistance of 0.075. The

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A marine battery has an emf of approximately 12.5 V and an internal resistance of 0.075Ω. The starter motor for the outboard engine requires 40 A while cranking the engine.
(a) Determine the potential difference across the starter motor when it is cranking.
(b) What is the resistance of the starter motor?

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