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9702 · 9.1

Electric current

Welcome to the fundamental concept of **Electric current**! In physics, current isn't just a flow of something; it's the directed movement of **electric charge**. Understanding how charge moves and how we quantify its flow is essential for building a strong foundation in electricity. Let's dive into the core principles. This pilot aligns with **Senpai Corner** AS notes (2025–2027) for topic **9.1**.

Need to know

What you need to know

  • I is the electric current in Amperes (A).
  • ΔQ is the change in charge (amount of charge that flows) in Coulombs (C).
  • Δt is the time interval in seconds (s).
  • 1 Ampere is equivalent to 1 Coulomb per second (1 A = 1 C s⁻¹).

Explanation

Electric current

  1. I is the electric current in Amperes (A).
  2. ΔQ is the change in charge (amount of charge that flows) in Coulombs (C).
  3. Δt is the time interval in seconds (s).
  4. 1 Ampere is equivalent to 1 Coulomb per second (1 A = 1 C s⁻¹).
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