Electric DC Circuit Analysis – Ohm’s Law & Element Constraints (Part 1)

Here is part 1 on element constraints. We’ll start off with the simplest one, namely Ohm’s Law. Ohm’s Law says that the voltage is directly proportional to the current. That means if I double my current, I double my voltage and vice versa. How much current is defined by the resistance or conductance (reciprocal of resistance). The resistance is the proportionality constant that makes and forms an equation called Ohm’s Law: V=IR where V is the voltage across the resistor and I is the current through the resistor and R is the resistance. Conductance, denoted as G, is the reciprocal of R or G=1/R.

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