- #1

Jakarto

- 11

- 0

## Homework Statement

Consider the circuit shown below. a) What is the total power loss for the whole circuit? b) What is the power loss through R1? c) What is the power loss through R2? d) Find the voltage across each of the three resistors.

I didn't do this myself. I have no idea what's going on, if these answers are correct, it's because someone answered them for me on Chegg, otherwise I have no idea. Please give me the best help you guys can.

[/B]

## Homework Equations

Rnet = (R2 * R3) / (R2 + R3) +(R1)

I = V / Rnet

Ptotal_loss = VI

PR1 = I^2 * R1

PR2 = I'^2 * R2 ? what is I'^2?[/B]

## The Attempt at a Solution

Rnet = (240*240)ohm / (240+240)ohm +(240 ohm) = 360 ohm.

I = (120V) / (360 ohm) = 0.333A

a) Ptotal_loss = 120V * 0.333A = 40W

b) PR1 = (0.333A^2) * (240 ohm) = 26.61W

c) PR2 = I'^2 * R2 = I'^2 = I'^2 * (240 ohm) = 6.68W? How, why and what is I'^2? Is this answer even correct?

d) So, the potential drops, and the answer is R1 = 80V apparently and

R2 = R3 = 40V? How? What formula(s)? All I know is V = IR, but it is not working here. [/B]