(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

At time t=0, a cell of EMF E and internal resistance r is connected to the capacitor of Capacitance C.

i) Derive an expression for the voltage across the capacitor at subsequent times.

ii) If the capacitance is 5000uF and the voltage across the capacitor reaches 73 V at a time 10ms after connection, before tending towards a steady value of 150V, what are the values of the cell's EMF and internal resistance?

2. Relevant equations

E = V - IR?

3. The attempt at a solution

I am unsure about part i. I know for the second part i will have to solve a simultaneous equation... However I cant get part i.

Any advice would be greatly appreciated! Thanks

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# Homework Help: Capacitance question?

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