
Just in case you did not see our first module, Linear Circuits 01 - Potential, Current, and Resistance, we are including our new definition of Ohm's Law here.
Explore solving a two-source circuit with a 470 ohm resistor by tracking ground, applying voltage-source equations, and using Ohm's law to compute the current as 6.38 mA in engineering notation.
Moving ground locations does not affect the voltage drop or current; the 33-ohm resistor shows a 3-volt drop and 90.9 mA, with 7 V and -4 V sources.
Day 2 of Linear Circuits. Students spend more time working with voltage sources. Problems are solved a couple different ways, each with a different ground location. It turns out that the ground location in a circuit is not that important after all.
The material covers all of the lecture material from a second lecture in a traditional, sophomore-level linear circuits class.