# Finding Values of resisters in a parallel circuit

#### bLacey

Joined May 10, 2011
1
I cant figure where to start! I have a four resistor circuit without values on the resistor. its an AC circuit with 50 amps, 440V/60 Hz. On R1 it has 750W/265V, R2 has 900W/260V, R3 has 1200W/120V, and R4 has 700W/265V. I have to find the values of R1 threw R4.

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#### jegues

Joined Sep 13, 2010
732
I cant figure where to start! I have a four resistor circuit without values on the resistor. its an AC circuit with 50 amps, 440V/60 Hz. On R1 it has 750W/265V, R2 has 900W/260V, R3 has 1200W/120V, and R4 has 700W/265V. I have to find the values of R1 threw R4.
Can you post a schematic or sketch or the circuit? This would make things much more clear.

#### BillB3857

Joined Feb 28, 2009
2,493
Even without a schematic, if you know the wattage and voltage of each resistor, using the power formula and ohms law, you can calculate each resistance value. P=IE, E=IR. You should already know how to re-arrange the formula to find any of the unknowns.