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View Full Version : Engineering 101 - How to find voltage?


Mohdoo
Oct29-09, 01:12 AM
1. The problem statement, all variables and given/known data

http://imgur.com/niH5T.jpg

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 :(

2. Relevant equations

I don't know :(

3. 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 :(

miqbal
Oct29-09, 01:33 AM
Are you familiar with Kirchhoff's Laws?