Series RL circuit

Discussion in 'Homework Help' started by manaxmizery, Oct 2, 2015.

1. manaxmizery Thread Starter New Member

Nov 7, 2012
7
0

For this question , I have used the methods as shown in the picture below :

And for the second question :

I have used the following working :

Can anyone help me check and give me feed back on whether I have done the correct steps and assumptions ? Thanks in advance.

Regards,
Steve

2. manaxmizery Thread Starter New Member

Nov 7, 2012
7
0
Here's the working to part 1a - couldn't attach it to the original post !

3. shteii01 AAC Fanatic!

Feb 19, 2010
3,518
515
t=2.5 seconds is wrong.

Your limits of integration is from 0 to 2.5 seconds. But within those limits you have two distinct segments. First segment is where v(t)=10 volts, this segment is from 0 to 2 seconds. Second segment is where v(t)=0 volts, this segment is from 2 to 2.5 seconds.

Since integral of zero is zero, you really only have the integral from 0 to 2 seconds plus 1 A.

And, of course, you integral at 4 seconds is also wrong.