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.

Current is reported as the number of charges per unit time passing through a boundary. Visualize placing a boundary all the way through a wire. Station yourself near the boundary and count the …

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 an …

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 millihenries.

Learn Drift velocity (concept & intuition) Drift velocity - formula & derivation Current from drift velocity (I = neAvd) Ohm's law - derivation (using drift velocity)

Ohm's Law is V = IR, where V = voltage, I = current, and R = resistance. Ohm's Law allows you to determine characteristics of a circuit, such as how much current is flowing through it, if you know the …

Review the key terms, equations, and skills related to Ohm's law, including how electric potential difference, current, and resistance are related.

Displacement current isn't always equal to conduction current. In a capacitor, they match up, but in a steady DC circuit, there's only conduction current. Simple as that!

Now we know the current, so we can compute how much power is being dissipated by our voltage divider,

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