Circuit interconnection: power delivered

[Jenny08]

The circles are referring to independent voltage or current sources, which maintain the same current/voltage regardless of the rest of the circuit.

I'm confused because power delivered means they want the value of the "negative" power, which would mean only i*v1 would be the only power delivered, however this answer is wrong.

Can someone explain to me if I'm missing something here? Thank you

 

[gneill]

Hi Jenny08,

Welcome to Physics Forums!

In future, please retain and use the formatting template which was provided in the edit window when creating a homework help request. -- thanks.

Perhaps they want the sum of the powers produced by sources that are sourcing rather than sinking it. What is the potential drop across the current source?

 

[anorlunda]

The definition of "the circuit" is very unclear. You have 4 components in the diagram, different interpretations of "the circuit" could mean 1, 2, 3, or 4 of them. Are you sure that is all the information you are given?