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 10 s. The results are shown in Table 23.1. The potential difference across the capacitor after 60 s is 8.5 V. Plot a current–time graph, and use it to estimate the value of C.

Transcribed Image Text:

t/s 10 20 30 40 50 60 I/ µA 200 142 102 75 51 37 27