Gce Model Questions Vol1 2023 Physics Question 45
Practice objective / multiple choice question 45 from the 2023 Gce Model Questions Vol1 Physics examination.
A battery of emf \(E\) and internal resistance \(r\) is connected to a variable resistor \(R\). When \(R = 5\,\Omega\) the current is \(2.0\,\text{A}\) and the terminal voltage across \(R\) is \(10\,\text{V}\). When \(R\) is changed to \(15\,\Omega\) the terminal voltage becomes \(12\,\text{V}\).\n(a) Determine the emf \(E\) of the battery.\n(b) Determine its internal resistance \(r\).\n(c) Calculate the power dissipated in the internal resistance when \(R = 5\,\Omega\).
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About This Question
This is Gce Model Questions Vol1 2023 Physics Question 45. It is one of the objective questions from the 2023 Gce Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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