Category: Electrical engineering

An October 2025 report indicated a sustained upward trend in copper prices driven by supply disruptions and high demand. Given its rising cost, copper faces increasing market pressure from other materials. This article delves into what mineral does copper compete with in various applications, exploring the trade-offs that influence material selection in key industries.

According to physics, voltage is not a physical substance composed of ingredients, but is instead a measure of the electric potential difference between two points. The concept of 'ingredients' stems from a common misconception, as voltage is an energetic state, not a material object.

Globally, millions of products bear a UL mark, yet in science, a 'μL' refers to a millionth of a liter. The meaning of '1 UL' depends entirely on its context, referring either to a precise metric volume or a rigorous product safety certification from Underwriters Laboratories.

According to research, a significant portion of a transformer's energy inefficiency can be attributed to losses occurring in its core and windings. This brings us to a crucial clarification: **Are iron loss and copper loss the same?** The answer is unequivocally no; these terms are derived from two completely different fields of study, one in electrical engineering and the other, often mistakenly assumed, in nutrition.