Immediately after closing switch, what is current through inductor? - PowerPoint PPT Presentation

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Immediately after closing switch, what is current through inductor?

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Immediately after closing switch, what is current through inductor? A] 0 B] 1/2 ampere C] 1 ampere D] 2 amperes Alternating Current circuits Phasors Alternating ... – PowerPoint PPT presentation

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Title: Immediately after closing switch, what is current through inductor?


1
Immediately after closing switch, what is current
through inductor? A 0 B 1/2 ampere C 1
ampere D 2 amperes
2
Immediately after closing switch, what is voltage
across capacitor? A 0 V B 20 V C 40 V D
160 V
3
No 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
4
No 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
5
A 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
6
A 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)
8
Critical damping gives the fastest return to
equilibrium
Also applies to car shocks springs!
9
Alternating Current circuits
10
Phasors
11
Which 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?)
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