Gce Model Questions Vol1 2020 Physics Question 20
Practice objective / multiple choice question 20 from the 2020 Gce Model Questions Vol1 Physics examination.
A battery of emf \(E\) and internal resistance \(r = 0.50\ \Omega\) supplies a circuit consisting of three external resistors: \(R_{1}=5.0\ \Omega\) in one branch, and \(R_{2}=4.0\ \Omega\) and \(R_{3}=6.0\ \Omega\) in series in a second branch. The two branches are connected in parallel across the battery terminals. The current in the branch containing \(R_{1}\) is twice the current in the branch containing \(R_{2}\) and \(R_{3}\). The total power dissipated in the three external resistors is \(200\ \text{W}\). Determine the emf \(E\) of the battery.
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About This Question
This is Gce Model Questions Vol1 2020 Physics Question 20. It is one of the objective questions from the 2020 Gce Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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