Positive or Negative First: What’s the Difference? (Clear Guide for 2026)
If you’ve ever heard someone say “positive first” or “negative first”—especially in chemistry, science labs, batteries, or electrical discussions—and felt confused, you’re not alone. These terms are commonly used, often misunderstood, and sometimes mixed up even by students and beginners. At first glance, positive first and negative first may sound like minor wording differences. But…
