Gce Model Questions Vol1 2020 Physics Question 30
Practice objective / multiple choice question 30 from the 2020 Gce Model Questions Vol1 Physics examination.
A battery of emf \(E\) and internal resistance \(r\) is connected to an external circuit as follows: a resistor \(R_{1}=2\ \Omega\) is in series with the parallel combination of \(R_{2}=6\ \Omega\) and \(R_{3}=12\ \Omega\). The terminal voltage across the external circuit is measured to be \(12\ \text{V}\) while the current through \(R_{1}\) is \(2\ \text{A}\). The power dissipated in the internal resistance of the battery is \(4\ \text{W}\). Determine (a) the emf \(E\) of the battery, (b) the internal resistance \(r\), and (c) the power dissipated in resistor \(R_{2}\).
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About This Question
This is Gce Model Questions Vol1 2020 Physics Question 30. It is one of the objective questions from the 2020 Gce Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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