Neco Model Questions Vol1 2019 Physics Question 41
Practice objective / multiple choice question 41 from the 2019 Neco Model Questions Vol1 Physics examination.
A battery of emf \(E\) and internal resistance \(r\) is connected in series with two resistors \(R_{1}\) and \(R_{2}\). When the circuit is operating, the current through \(R_{2}\) is \(0.5\) A and the potential difference across \(R_{2}\) is \(6\) V. When an identical second battery (same \(E\) and \(r\)) is connected in parallel with the first (positive terminals together and negative terminals together), the current through \(R_{2}\) becomes \(0.8\) A. In the first arrangement the potential difference across \(R_{1}\) is measured to be \(4\) V. Determine the emf \(E\) of each battery (in volts).
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About This Question
This is Neco Model Questions Vol1 2019 Physics Question 41. It is one of the objective questions from the 2019 Neco Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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