Igcse Model Questions Vol1 2019 Physics Question 9
Practice objective / multiple choice question 9 from the 2019 Igcse Model Questions Vol1 Physics examination.
A battery has an emf of \(15\,\text{V}\) and an internal resistance \(r\) (unknown). It is connected to a circuit consisting of a \(4\,\Omega\) resistor in series with a parallel combination of a \(6\,\Omega\) resistor and a \(12\,\Omega\) resistor. The terminal voltage across the external circuit is measured to be \(12\,\text{V}\). Determine the internal resistance \(r\) of the battery and the power dissipated in the \(12\,\Omega\) resistor (give the power in watts).
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About This Question
This is Igcse Model Questions Vol1 2019 Physics Question 9. It is one of the objective questions from the 2019 Igcse Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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