Double check me.



Assume 12 volts is constant.





If I want to use 4 watts power, would I use a 36 Ohm resistor?



If I want to use 27 watts power, I w ould use a 5.33 Ohm resistor?

You got it right

122/36 = 4 watts



and



122/5.33 = 27 watts





now that was not very difficult, was it.

I really do not understand your question.





The values you give, the resistors would use the 4 and 27 watt.



So how are You going to use 4 or 27 watt if they're already being used?





Maybe I'm being pedantic.

Basic Formula Ohm's Law :



i) V=IR



ii) P=IV





If P=4W



P=V^2/R



4=12^2/R



R=36ohm





If P=27W



P=V^2/R



27=12^2/R



R=5.333ohm





You're Answer Definitely Correct =)

P = E^2/R





R = E^2/P = 144/P





...so the values you give are correct.

Double check me.



Assume 12 volts is constant.





If I want to use 4 watts power, would I use a 36 Ohm resistor?



If I want to use 27 watts power, I w ould use a 5.33 Ohm resistor?