paper 1 Definition and 1 Threads

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    Any Edexcel A Level Physics Teachers Here - Paper 1 Q13?

    Unfortunately I can't share the question. It involves a photocell with a constant terminal pd as load resistance decreases. Terminal pd then falls off as output approaches emf. It is Q13 on Edexcel Paper 1. I am getting two different answers for the final part (internal resistance) depending...
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