Igcse Model Questions Vol1 2024 Physics Question 37
Practice objective / multiple choice question 37 from the 2024 Igcse Model Questions Vol1 Physics examination.
A battery of emf \(12\ \text{V}\) and internal resistance \(r\) supplies two resistors \(R_{1}=6\ \Omega\) and \(R_{2}\) connected in parallel. The terminal voltage across the parallel combination is measured to be \(9\ \text{V}\). (a) Find the value of \(R_{2}\). (b) Determine the internal resistance \(r\). (c) Calculate the efficiency of the battery, defined as the ratio of the power delivered to the external load to the total power generated by the battery, expressed as a percentage.
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This is Igcse Model Questions Vol1 2024 Physics Question 37. It is one of the objective questions from the 2024 Igcse Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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