SP212/3321&5521
Chapter 31 - Worksheet #1
Question 1: A LC circuit is shown below with a 0.550 F capacitor and a 0.450 H inductor. At time
t=0 the capacitor is fully charged with Q=5.75 C (and the current is zero). (a) How much charge
is held on the capacitor at time t=1.25 s? (b) How much current is flowing through this circuit at
time t=1.25 s?
0.350 F
0.450 H
SP212/3321&5521
Chapter 31 - Worksheet #1
Question 2: An LC circuit features a 0.25 F capacitor and an inductor. The potential energy stored
in the electric field of the capacitor is shown below as a function of time. (a) What is the magnitude
of the charge stored on the capacitor at time t=2.0 s? (b) What is the inductance of the inductor in
the circuit? (c) What is the magnitude of the current flowing through the inductor at time t=2.0 s?
2
L
1.5
UE [J]
0.25 F
1
0.5
0
0
1
2
3
t [s]
4
5
6