Homework Help: College Physics

Posted by Lanise on Friday, February 12, 2010 at 9:49pm.

Two 9.1 ohms resistors are connected in parallel, as are two 5.9 ohms resistors. These two combinations are then connected in series in a circuit with a 20 V battery.
What is the current in each resistor?
I9.1, I5.9 = A
What is the voltage across each resistor?
V9.1,V5.9 = V

College Physics - bobpursley, Friday, February 12, 2010 at 9:56pm
First, what is the equivalent resistance in the circuit:
R= 9.1/2+5.9/2=4.55+2.99=7.54 ohms
What is the circuit current? 20/7.54

what is the current in each resistor (half the circuit current)= 10/7.54

Now figure voltage across each resistor.
V=I*resistanceof resistor

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