RC Circuit: Charging Time Constant · EuPhO 2020 #1

Physics · dc-circuits · ac-circuits

Problem

A capacitor

C = 47\;\mu\text{F}

is charged through a resistor

R = 10\;\text{k}\Omega

from a

V_0 = 9.0\;\text{V}

battery. Find (a) the time constant, (b) the voltage across the capacitor at

t = 0.47\;\text{s}

, (c) the energy stored at that time.