Pls someone help me understand why this gives the initial reading on a voltmeter..?Watch
Mark scheme: http://pmt.physicsandmathstutor.com/...itors%20MS.pdf
It is question 2cii, I don't understand why the calculation is such. It might be very obvious though I know. Please can you explain what is being found and how the equation helps it.
the sphere alone is charged to 5000V - then it;s disconnected from the PSU and then connected to a capacitor.
The fixed amount of charge the sphere had when it was at 5000V is now distributed to the much larger capacitance of the sphere plus capacitor and you work out the new voltage as shown by Lizard.