Determine the power dissipated in the 9 ohm resistor in the circuit shown in the drawing. (R1=4.0 Ohms, R2=9.0 Ohms, and V1=9V).(adsbygoogle = window.adsbygoogle || []).push({});

When trying to solve this problem, I tired to add the resistance of the bottom two as if they were in series, and then add that to R1 to get the total resistance. I then found the current using the given voltage, and then tried to multiply that to the voltage to get an answer of 9 watts. But that is wrong, and I am not sure where I went wrong.

I'd appreciate any help. Thank you.

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# Circuit that is both parallel and in series

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