# Hint and Solution Unclear

Hi Aili,

Perhaps it would help students if you did the following. Cite the names of the laws that you stated in your hint (if such equations have any), and justify how you obtained that system of equations in your solution (for instance, mention that you are applying your hint to the system of linear equations given in the question).

Best,

Brian

Hey Brian,

Thanks for your message.

I wrote my hint and solution based on the lecture notes http://www.math.ubc.ca/~elyse/152/2018/13LCR.pdf Unfortunately, I do not know the names of these differential equations. There are no names stated in the lecture notes as well. I am not an expert on this kind of circuit questions, so feel free to help me make any corrections or add more details to the solution.

Thanks. Aili

I don't like these notes because I thought that a "voltage drop" was the negative of the difference in voltage, and they seem to be using the opposite convention.