I want to calculate the total power consumed by a circuit whose input and output ports are given. How do I go about it?
I attached a pdf file to make my question clear.

Thanking you.

 

Need more information.

Is this poorly worded schoolwork?

 

For example, below is a circuit netlist written in ltspice simulator. We need to know the total power consumed by the circuit when we perform transient analysis for 2m second.

*Energy
.model SW SW(Ron=1m Roff=100Meg)
.lib opamp.sub
v2 test 0 pulse(-5 5 0 1n 1n 10u 1.01m)
Sp x q test 0 SW
Sp1 y q test 0 SW
v3 y 0 2
v1 x 0 5
Xopamp1 q 0 op opamp Aol=100Meg GBW=1000Meg
Rf1 op q 100
.tran 2m
.end

 

Question makes no sense, but logically power consumed by any circuit is:

\( P = \sum_{i=1}^{m} O_i - \sum_{j=1}^{n} I_j \)​

where \( I_j\) and \(O_i \) are the powers related to each input or output. Obviously for AC phase or power factor may need to be taken into account and the result may be frequency dependant.

 

below is a circuit netlist written in ltspice simulator.

Why are you showing the netlist?
Post the .asc file.

 

As to the Spice netlist - power consumption only applies to real-world components - your opamp has no power supply so the whole concept of power consumption is meaningless

 

As Irving noted, the op amp is an ideal model that consumes no power.
You need an op amp model that has power consumption from a power supply.