Igcse Model Questions Vol1 2019 Physics Question 39
Practice objective / multiple choice question 39 from the 2019 Igcse Model Questions Vol1 Physics examination.
A battery of unknown emf \(E\) and internal resistance \(r\) supplies a lamp of resistance \(6\ \Omega\). When the lamp alone is connected, the current is \(1.0\ \text{A}\). When a second identical lamp is added in series, the current falls to \(0.6\ \text{A}\). Determine the emf \(E\) of the battery (in volts).
Answer Options
About This Question
This is Igcse Model Questions Vol1 2019 Physics Question 39. It is one of the objective questions from the 2019 Igcse Model Questions Vol1 Physics examination.
Difficulty level: Hard .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.