Formula for avg. power in AC RLC circuit??

Thread Starter

Elevon

Joined Jun 7, 2020
18
Screenshot (185).png
Can I use a potential divider equation in this context? I am unsure how to approach answering this question. I am trying to obtain the Vrms value and then continue from there.
 

MrChips

Joined Oct 2, 2009
22,067
Power dissipation in a resistor is
P = I x I x R
P = V x V / R

Determine the Vrms and use the power formula above.
 

Thread Starter

Elevon

Joined Jun 7, 2020
18
Thanks for the help, these are useful but i cant seem to perform any kind of nodal/loop analysis without running into some kind of issue. I don't know what technique I'm missing.
 

MrAl

Joined Jun 17, 2014
7,849
View attachment 215427
Can I use a potential divider equation in this context? I am unsure how to approach answering this question. I am trying to obtain the Vrms value and then continue from there.
Do you know how to handle a dependent source in a circuit? That is what you need to know because of the 20ix source.
Then you calculate Ix (or voltage across that resistor 50 Ohms) and then you can calculate the power. You can probably assume that the source 'is' is given in peak units because of the formula given 6*cos(1000*t).
 
Top