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Finding the Current in a circuit, with series opposing voltage sources.

  • Thread starter Killstudy
  • Start date
  • #1
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Homework Statement


asd.png
V1-12V
V2-9V
R1-4 Ohms
R2-7 Ohms
R3-8 Ohms

Each current has to be found when the switch (k) is both open and closed.

Homework Equations





The Attempt at a Solution



I can find each current when the switch is open, however I'm confused at what would happen when it becomes closed.
 

Answers and Replies

  • #2
ehild
Homework Helper
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1,802
Hi Killstudy, welcome to PF. I hope your studies do not kill you.

The forum rules here says that you need to show your attempts for solving the problem. How did you solve the case with open switch?

If the switch is closed you have two loops and need to use Kirchhoff' rules.

ehild
 

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