David Sang and Graham Jones Solutions for Chapter: Capacitance, Exercise 2: Questions

Calculate the charge on a $220 \mu \mathrm{F}$ capacitor charged up to $15 \mathrm{~V}$. Give your answer in micro coulombs $(\mu \mathrm{C})$ and in coulombs $\left(\mathrm{C}\right)$.

A charge of $1.0 \times 10^{-3} \mathrm{C}$ is measured on a capacitor with a potential difference across it of $500 \mathrm{~V}$. Calculate the capacitance in farads$\left(\mathrm{F}\right)$ , microfarads $(\mu \mathrm{F})$ and picofarads $(\mathrm{pF})$.

Calculate the average current required to charge a $50 \mu \mathrm{F}$ capacitor to a potential difference of $10 \mathrm{~V}$ in a time interval of $0.01 \mathrm{~s}$

A student connects an uncharged capacitor of capacitance $C$ In series with a resistor, a cell and a switch. The student closes the switch and records the current $I$ At intervals of 10s. The results are shown in table. The potential difference across the capacitor after $60s$ was $8.5V$. Plot a current–time graph, and use it to estimate the value of $C$.