LO3 Approximate solutions of contextualised examples with ...

LO3 Approximate solutions of contextualised examples with graphical and numerical methods Task 3.0 3.1 (a) The voltage across a capacitor at a time t is given by vc = 120(1 – e-t/CR), where R = 47kΩ and C = 15 uF. Sketch the graph of voltage against time and estimate the value of the voltage when t =2s after being connected to a dc supply.