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First order RC Circuit Table problem

  • Thread starter k31453
  • Start date
  • #1
58
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Homework Statement


Hi I got this problem and have to fill out this table.
Untitled.png


4ea18d02-8e1f-4015-9006-64e73a38f53d-original.png


Homework Equations



node analysis
time constant = RC
ic(t)= C dVc(t)/dt


The Attempt at a Solution



I got few answers which i worked it out.

i (0-) = 0

Vc(0-) = 1.84

Vr(0-) = i (0-) * 10000

i (0+) = 0

Vc(0+) = 3.16

Vr(0+) = i (0-) * 10000



Am i right so far?
I dont know rest of them. the last column i know i have to use node analysis for that.
 

Answers and Replies

  • #2
gneill
Mentor
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2,773
The problem description mentions two separate time intervals, a charging interval and a discharging interval. You haven't stated which interval is in play for the determination of the table values.
 
  • #3
58
0
I understand but thats what it said... complete table 1.
 
  • #4
58
0
The problem description mentions two separate time intervals, a charging interval and a discharging interval. You haven't stated which interval is in play for the determination of the table values.
I understand but thats what it said... complete table 1.
 
  • #5
gneill
Mentor
20,795
2,773
I understand but thats what it said... complete table 1.
Okay, so pick one of the intervals and state which one you've chosen (somehow I suspect that they want you to fill out the table twice, once for each interval...).

Hint: Before you make assumptions about Vc(0-) be sure to compare the time constant of the circuit to the given switching interval.
 

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