HELP Solve for R and I

Thread Starter

tjjam2003

Joined Apr 5, 2006
22
In a Series-Parallel circuit, how do you find the resistance and the current if only the voltage is given? 5 resistors in series and 1 resistor in parallel.

R1= 3 ohm Voltage= 3V Current 1A
R2= 5 ohm Voltage =1.65 current 0.33A

R3= ??? voltage= 4 volts (parallel)

R4= 4 ohm Voltage 1.32 Current 0.33
R5= 1 ohm voltage 1 volt current 1A
R6=3ohm voltage 0.99 current 0.33
 

JoeJester

Joined Apr 26, 2005
4,358
With your detail, I don't see your initial standard ... 5 resistors in series and 1 in parallel.

I can see three branches in parallel, one single resistor, on with two in series, and one with three in series.

If there is an associated drawing, post it.
 

thingmaker3

Joined May 16, 2005
5,084
Originally posted by tjjam2003+Apr 5 2006, 08:13 AM--><div class='quotetop'>QUOTE(tjjam2003 @ Apr 5 2006, 08:13 AM)</div><div class='quotemain'>In a Series-Parallel circuit, how do you find the resistance and the current if only the voltage is given?
[post=15853]Quoted post[/post]​
[/b]

You don't.

<!--QuoteBegin-tjjam2003
@Apr 5 2006, 08:13 AM
5 resistors in series and 1 resistor in parallel.

R1= 3 ohm Voltage= 3V Current 1A
R2= 5 ohm Voltage =1.65 current 0.33A

R3= ??? voltage= 4 volts (parallel)

R4= 4 ohm Voltage 1.32 Current 0.33
R5= 1 ohm voltage 1 volt current 1A
R6=3ohm voltage 0.99 current 0.33
[post=15853]Quoted post[/post]​
[/quote]

Okay... R1 and R5 are in series with each other, yes? 1A each and 4v across the two of them.

R2, R4, and R6 are in series as well... 1/3 amp each and about 4V across the three of them.

If R3 is also in parallel, then there is no way to know current or resistance, save that R>0.

If the above is wrong, then the numbers given are also wrong.
 

Mazaag

Joined Oct 23, 2004
255
Originally posted by n9xv@Apr 5 2006, 06:41 PM
Draw it. Use paint/Paintbrush, zip it, post it.
[post=15877]Quoted post[/post]​
:D √ Draw It , Paint It , View It, Change It, Print It, Zip It , Post - Upload It √ :D
 
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