Igcse Model Questions Vol1 2017 Physics Question 25
Practice objective / multiple choice question 25 from the 2017 Igcse Model Questions Vol1 Physics examination.
A battery of unknown emf \(E\) and internal resistance \(r\) is connected to an external resistor. When a \(6\ \Omega\) resistor is attached, the current measured is \(1.00\ \text{A}\). When a \(12\ \Omega\) resistor is attached, the power dissipated in the resistor is \(4.50\ \text{W}\). Determine the emf of the battery (in volts, to two decimal places) and its internal resistance (in ohms, to two decimal places).
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About This Question
This is Igcse Model Questions Vol1 2017 Physics Question 25. It is one of the objective questions from the 2017 Igcse Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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