In a medical defibrillator circuit, an initially uncharged capacitor is charged by a constant-current power supply of 2.4 mA. After a charging duration of 150 ms, the potential difference across the capacitor is measured to be 1.8 kV1.8\text{ kV}1.8 kV. What is the capacitance of the capacitor?
2.0×10−10 F2.0 \times 10^{-10}\text{ F}2.0×10−10 F
2.0×10−7 F2.0 \times 10^{-7}\text{ F}2.0×10−7 F
2.0×10−4 F2.0 \times 10^{-4}\text{ F}2.0×10−4 F
8.9×10−6 F8.9 \times 10^{-6}\text{ F}8.9×10−6 F
63 exam-style questions on AQA A Level Physics Capacitance (A-level only), covering Capacitance (A-level only), Parallel plate capacitor (A-level only), Energy stored by a capacitor (A-level only), and Capacitor charge and discharge (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.