Use superposition to find i0 10use superposition to find i 6...

Name: use superposition to find i0 10use superposition to find i 6 kq 12v 6 k 6 k wm 6 k 6 ma 12 k2 4 ma 10246
Uploaded: 2023-03-22T18:33:38-08:00
Duration: 7 min 4 s
Channel: Sam Stansfield
Description: use superposition to find i0 10use superposition to find i 6 kq 12v 6 k 6 k wm 6 k 6 ma 12 k2 4 ma 10246

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Transcript

00:01 Okay, so we're supposed to solve this circuit by superposition.

00:08 So the idea of superposition is that we have two different power sources.

00:12 We have a 12 -volt battery and we have a 2 -mphure current source.

00:18 Okay, this is not a meter.

00:21 It looks like it might be a meter to sign we have 2 milliamps there, but in fact, it's a current source with a constant current of 2 millionpures.

00:35 So the idea is of superposition is we'll solve the circuit twice, two simpler circuits, and then you delete the power source and then add the results.

00:51 So we have do it twice, one with each power source.

00:54 So first of all, let's cut out the current source.

00:58 You get a circuit that looks like this.

01:05 Draw some currents in there.

01:09 We'll label them by a in a minute.

01:17 Write out kirchkov's laws.

01:36 These equations are pretty easy to solve.

01:38 You could do it by making series and parallel combinations, but then you have to go backwards from that to find the currents.

01:48 So it's just about as much work to just solve the equations in the first place.

01:56 Like i said, we'll label them all with a's because this is part a.

02:02 And here's the answers from solving those equations.

02:26 Okay.