Neco Model Questions Vol1 2018 Physics Question 9
Practice objective / multiple choice question 9 from the 2018 Neco Model Questions Vol1 Physics examination.
A battery of emf \(E\) volts and internal resistance \(r\) ohms is connected to a circuit as shown: a resistor \(R_1 = 5\ \Omega\) is in series with the parallel combination of \(R_2 = 3\ \Omega\) and \(R_3 = 9\ \Omega\). The total current drawn from the battery is \(4.0\ \text{A}\). The power dissipated in resistor \(R_2\) is measured to be \(27\ \text{W}\). The battery supplies a total power of \(120\ \text{W}\). Determine the emf \(E\) of the battery and its internal resistance \(r\).
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About This Question
This is Neco Model Questions Vol1 2018 Physics Question 9. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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