What is the total power of the circuit?   http://user-content.enotes.com/37e352ae8dd206a9ba6b081e5981f4c77aa1f87b.jpg



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Posted on (Answer #1)

We have two resistors connected parallel here. So across each of the two resistors we have voltage of 10V.

For R1 using V = IR;

`10 = Ixx5xx10^3`

`I = 10/(5000) = 0.002A = 2mA`


So the total current of the circuit is` (2+10) = 12mA = 0.012A`


Power of a circuit is given by P = VI

`P = 10xx0.012`

`P = 0.12W`


So the power of the circuit is 0.12W.



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