Why is the current not zero in part e of this Kirchoff's Law problem?

[Regtic]

http://i.imgur.com/EFciS60.png

How do you do part e? Also can someone explain why the current I₃ isn't 0 if the switch has been closed for a long time? Doesn't it behave like a short circuit if the switch is closed because the capacitor becomes fully charged and the current becomes zero ish?

 

[phinds]

http://i.imgur.com/EFciS60.png

How do you do part e?

This is simple circuit analysis. You have to show an attempt yourself.

Also can someone explain why the current I₃ isn't 0 if the switch has been closed for a long time?

If the switch has been closed for a long time that current is zero.

Doesn't it behave like a short circuit if the switch is closed because the capacitor becomes fully charged and the current becomes zero ish?

No, it becomes an OPEN circuit and the current is zeor-ish.

Craaap sorry I just realized I posted this in the wrong forum. Wish I could delete the thread and repost it in the HW forum.

Yes, and you should have shown some attempt at your own work in the homework template.

 

[Regtic]

This is simple circuit analysis. You have to show an attempt yourself.


If the switch has been closed for a long time that current is zero.


No, it becomes an OPEN circuit and the current is zeor-ish.


Yes, and you should have shown some attempt at your own work in the homework template.

Oh this was from a test, I could have shown it but I got 5.5/10 on it so it wasn't very useful.

 

[Regtic]

here's what I did in case you wanted it

http://imgur.com/XiVqY5S&ldvjR42&0ZRthaR&00Zhetp#0

 

[Regtic]

No, it becomes an OPEN circuit and the current is zeor-ish.

What's the difference? I thought they were the same thing? They both mean the switch is open no?

 

[phinds]

What's the difference? I thought they were the same thing? They both mean the switch is open no?

Do you understand that a short circuit and an open circuit are not the same thing? Sloppy terminology results from and/or causes sloppy thinking, so saying that a short circuit and an open circuit are the same thing is not a good idea.

 

[Regtic]

Do you understand that a short circuit and an open circuit are not the same thing? Sloppy terminology results from and/or causes sloppy thinking, so saying that a short circuit and an open circuit are the same thing is not a good idea.

Ya no kidding...

 

[Regtic]

Do you guys think these answers are correct? I posted the problem to chegg but I have like 3 different answers. I think this one might might be legit, but I don't know if it's really discharging or not. I think it's charging up because it's an open circuit and current is trying to pass through it but it's fully charged. I don't understand what he did for part D so I think that's wrong, but everything else is legit.

(or on imgur)
http://i.imgur.com/KxAoeQ4.jpg?2