Review the key terms, equations, and skills related to current, resistance, and resistivity, including how to find the current direction and what resistance depends on.

Electrical engineering Course: Electrical engineering > Unit 1 Lesson 1: Getting started Electric current Current direction Voltage Conventional current direction Preparing to study electrical …

We look at the inductor i-v equations and notice how important it is to give inductor current a place to flow. Written by Willy McAllister. The inductor is one of the ideal circuit elements. Let's put …

What is the current at the end of this pulse here? So, at two milliseconds, let's figure out what the current is, and that equals, at two milliseconds it's two times two milliseconds divided by 10 …

A current flowing into a capacitor causes charge to accumulate. The voltage rises according to q = Cv and we say the capacitor integrates current.

The voltage across the inductor (and therefore both resistors) is 0 . Ohm's Law tells us resistors with 0 volts have 0 current. When current through an inductor is constant, we say: The …

The capacitor current-voltage equation in derivative form and integral form. Created by Willy McAllister.

Demonstrates the capacitor i-v equation by deriving the voltage on a capacitor driven by a current source. Written by Willy McAllister.

Assign a current variable to each mesh or loop, using a consistent direction (clockwise or counterclockwise). Write Kirchhoff's Voltage Law equations around each mesh and loop.

Kirchhoff's Laws describe current in a node and voltage around a loop. These two laws are the foundation of advanced circuit analysis.