Title: Immediately after closing switch, what is current through inductor?
1Immediately after closing switch, what is current
through inductor? A 0 B 1/2 ampere C 1
ampere D 2 amperes
2Immediately after closing switch, what is voltage
across capacitor? A 0 V B 20 V C 40 V D
160 V
3No current through inductor, no voltage across
capacitor!
Immediately after closing switch, what is current
through battery? A 0 B 1/2 ampere C 1
ampere D 2 amperes
4No current through inductor, no voltage across
capacitor!
Immediately after closing switch, what is di/dt
for the inductor? (Be careful!) A 0 B 20
kA/s C 40 kA/s D 0.5 kA/s
What would be the answer if there were no cap in
parallel?
C
5A long time after closing the switch, what is the
current through the capacitor? A 0 B 1/2
ampere C 1 ampere D 2 amperes
6A long time after closing the switch, what is the
current through the inductor? A 0 B 1/2
ampere C 1 ampere D 2 amperes
7(No Transcript)
8Critical damping gives the fastest return to
equilibrium
Also applies to car shocks springs!
9Alternating Current circuits
10Phasors
11Which phasor shows a current that is positive and
increasing?
Which phasor shows a current that is negative
with an increasing magnitude (i.e. getting more
negative?)