# How to find RT?

#### calendera

Joined Aug 28, 2005
1
How can I re-draw the circuit?

#### pebe

Joined Oct 11, 2004
626
Originally posted by calendera@Aug 28 2005, 11:55 AM
How can I re-draw the circuit?
[post=9981]Quoted post[/post]​
It simplifies to a single 75 Ω resistor.

#### Gorgon

Joined Aug 14, 2005
113
Originally posted by JoeJester@Aug 28 2005, 04:25 PM
calendera,

You can confirm your results by connecting a DC source [say 600 V or 300 V] to  the circuit an then figure out the voltage across each resistor and the current through each resistor ...

[post=9983]Quoted post[/post]​
If you use 1V as the DC source the fractions get somewhat smaller.

1/600 + 1/600 + 1/600 + 1/600 + 1/300 + 1/300 = 1/Rx

TOK

#### Haus76

Joined Aug 31, 2005
7
Originally posted by Gorgon@Aug 29 2005, 06:35 PM
If you use 1V as the DC source the fractions get somewhat smaller.

1/600 + 1/600 + 1/600 + 1/600 + 1/300 + 1/300 = 1/Rx

TOK
[post=10015]Quoted post[/post]​

It's a parallel circuit. just calculate for Rt of a parrallel resistor network