Engineering 101 - How to find voltage?

AI Thread Summary
The discussion focuses on a student's difficulty in solving a homework problem related to finding the current (Is) and voltage (Vl) in a circuit. The teacher provided an answer for Vl as 11.90 volts, but the student is unable to understand how to arrive at this value. They attempted to apply equations related to voltage changes across resistors but found their efforts unsuccessful. The student also inquires about Kirchhoff's Laws, indicating a need for clarification on applying these principles to their problem. Understanding Kirchhoff's Laws may be essential for solving the homework question effectively.
Mohdoo
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Homework Statement



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The part that I am having problems with is part A, which asks for Is and Vl. I plain and simply can not figure it out. The teach provides answers to check our work, and she said Vl = 11.90 volts. But I don't see how that is the case. I also have no idea how to find Is :(

Homework Equations



I don't know :(

The Attempt at a Solution



I tried using equations to find the change in voltage over a resistor and then use that to find the voltage...Just plain didn't work :(
 
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Are you familiar with Kirchhoff's Laws?
 
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