Neco Model Questions Vol1 2018 Physics Question 26
Practice objective / multiple choice question 26 from the 2018 Neco Model Questions Vol1 Physics examination.
A battery of emf \(12\ \text{V}\) and internal resistance \(r\ \Omega\) supplies a resistor of \(6\ \Omega\). When a second resistor of \(3\ \Omega\) is connected in parallel with the first resistor, the total power delivered to the external circuit increases by \(20\%\). Find the value of \(r\) (in \(\Omega\)) correct to two decimal places.
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About This Question
This is Neco Model Questions Vol1 2018 Physics Question 26. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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