What is Ohm’s Law?

Before we dive into the fun part, let’s break it down:

• V (Voltage): The force pushing electricity through a wire.
• I (Current): The actual flow of electricity, like water moving through a pipe.
• R (Resistance): The roadblock that slows things down—imagine a narrow pipe restricting water flow.

Formula:V = I × R. The higher the resistance, the lower the current, and vice versa.

My First Experiment: A Lesson in Frustration

Back in university, I was excited to build my first LED circuit. I connected a battery, an LED, and a resistor—following Ohm’s Law, of course. But when I flipped the switch... nothing happened.

Confused, I checked my wiring—looked fine. Checked the power—fine. Then my professor walked by and casually said:

"Did you calculate the right resistor value?"

Oops. I had too much resistance, choking the current and preventing my LED from lighting up. After adjusting it, the LED glowed beautifully.

How This Relates to UX Design

At first, this was just an engineering lesson. But years later, when I started designing websites, I realized UX is just like Ohm’s Law:

• Voltage (V) = User Motivation – Just like voltage pushes current through a circuit, motivation pushes users to complete tasks.
• Current (I) = User Flow – A smooth, intuitive interface allows users to flow naturally through a website.
• Resistance (R) = Friction in UX – Bad UI elements—confusing layouts, slow load times—create resistance, making users struggle to reach their goal.

The UX Lesson from Ohm’s Law

I learned that reducing resistance (friction) improves flow, whether in circuits or user experiences. That’s why today, as a UX Designer, I always ask:

• Is this process too complicated for users?
• Are we helping or frustrating them?
• Can we lower the resistance to improve usability?

Final Thoughts: From Engineering to UX

Ohm’s Law taught me more than just electrical theory—it showed me that good design is about balance. Whether in a circuit or an app, understanding how to optimize flow and reduce friction makes all the difference.

And that’s how my first engineering lesson became the foundation of my UX design career.