MynameisBob
Mar 9, 2009, 01:06 AM
Calculate the potential difference across each resistor in parallel. 12v dc supply, 10 ohms (R) 5 ohms(R)?
Perito
Mar 9, 2009, 05:23 AM
When resistors are in series, their resistance can be added directly.
When resistors are in parallel, they add as follows
R(effective)=\frac1{\frac1{R1} + \frac1{R2} }
R(effective) = \frac{R1 + R2}{R1 R2}
After you figure out the resistance, it's Ohm's law all the way. The potential drop across each resistor will be identical since they're in parallel.