Part (d) is the one I'm having difficulty with.
Initially I assumed a voltage of 12 V was being applied across the resistor and used my previous calculation of current to find resistance.
This gave me a wrong answer.
I then realised that the energy stored in the capacitor must all be dissipated in the resistor.
Hence, I used E=VIt to find the voltage (6V). I then used V=IR to find R.
My questions are :
1.) Why did the first method fail ?
2.) When I used E=VIt I found the voltage was 6V. What does this value signify ? Is the average voltage ?
3.) What would be the reasoning behind part (e) ?