See attachment pls.
for a) I really need to know if this is right(well I know its right but it may not be what they want??).
for b) i need some pointers for (ii) and (iii)
very grateful if you would check a) and i) too... thanks to all future helpers
The Attempt at a Solution
Ohm = Volt / Ampere = Volt second / Coulomb
Farad = Coulomb / Volt
Ohm Farad = Volt second / Coulomb * Coulomb/Volt = second
U=7.1J (Please check this if you can)
no current though - not sure where to go