# Question: a 220f capacitor that is initially uncharged is connected in...

###### Question details

A 2.20-μF capacitor that is initially uncharged is connected in
series with a 7.5-Ω resistor and an emf source with V_{B} =
15 V and negligible internal resistance. At the moment after the
switch is closed, when the voltage difference across the resistor
is (2/7) V_{B}, what is the voltage difference across the
capacitor in terms of V_{B}?

The answer is 5/7 V_{B}. Please explain how to reach
this answer!