Neco 2019 Physics Question 39
Practice objective / multiple choice question 39 from the 2019 Neco Physics examination.
A circuit consists of a 12 V battery with internal resistance \(r=1\,\Omega\) connected to a resistor \(R_{1}\) in series. At the junction after \(R_{1}\) a resistor \(R_{2}=18\,\Omega\) is connected to ground, and a capacitor \(C\) is also connected to ground (initially uncharged). When the switch is closed at \(t=0\): the initial current is \(2\,\text{A}\) and after a long time the steady current is \(0.5\,\text{A}\). After 0.10 s the measured current is \(1.0\,\text{A}\). Determine (a) the values of \(R_{1}\) and \(R_{2}\), (b) the capacitance \(C\), and (c) the time required for the capacitor voltage to reach \(6\,\text{V}\).
Answer Options
About This Question
This is Neco 2019 Physics Question 39. It is one of the objective questions from the 2019 Neco 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.