Measuring DC Series/Parallel Circuit?

D

Deathshead

New Member

• Mar 22, 2004

• #1

How do I figure out Vt when all I am given is Rt??


THnx In Advance

 

C

chaotic-mind

New Member

• Mar 22, 2004

• #2

You can't. You need at least two values to calculate the total voltage in a circuit. You need Rt and It, Rt and Pt, or It and Pt.

 

D

Deathshead

New Member

• Mar 22, 2004

• #3

besides the Rt i also have a v=20v going into the 3rd resistor

 

R

Russlk

New Member

• Mar 22, 2004

• #4

How about posting the whole problem, so we can understand?

 

C

chaotic-mind

New Member

• Mar 22, 2004

• #5

deathshead please post the entire problem as russlk said. if you have other voltages then you clearly have more than just Vt.

 

C

ChrisP

Member

• Mar 23, 2004

• #6

I'll betcha he's got the value of that 3rd resistor, and that it's the series portion of the circuit, which would then allow calculation fo the circuit current, and then continue on from there...

 

C

chaotic-mind

New Member

• Mar 23, 2004

• #7

That would be too easy though. :wink:

 

C

ChrisP

Member

• Mar 23, 2004

• #8

Yeh -- that would be easy -- but it's the kind of thing I would give my students all the time... and a surprising number of them would miss it!

 

C

chaotic-mind

New Member

• Mar 23, 2004

• #9

I meant too easy for us. We'll probably have to provide more of an explanation than that. That is a good one to see who's paying attention though. 8)