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October 20, 2014

Homework Help: physics: Electricity/Resistance

Posted by charlie on Monday, February 16, 2009 at 7:48am.

If I have a 9V circuit, with:

2 resistors in parallel; followed by:
2 single resistors in series;

and I calculate the effective R of the parallel pair (using 1/R=1/R1+1/R2); can i then add this value to the series resistors to get a total for the circuit? As in:

(1/R=1/R1+1/R2)+R3+R4 = Reff

If so, can I now use Ohm's Law to get the current flowing through the last single resistor?

Thanks

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