H1 Physics 8867 · Topic 8
Currents
A reviewed 8867 repair guide for Currents.
Before you begin
Use the diagnostic first. Complete the assigned explanation, worked transfer, guided practice and independent practice in order before the assessment and delayed re-test.
How the ideas connect
- Current, charge flow and drift velocity
- Potential difference and electromotive force
- Electrical power
Learn in order
Lesson route
Objective clusters
- 01Current, charge flow and drift velocityCurrent is charge flow rate and I = nAvq relates microscopic carrier drift to the macroscopic current.
- 02Potential difference and electromotive forceBoth are energy per unit charge: e.m.f. describes energy supplied and p.d. describes energy transferred from electrical stores.
- 03Electrical powerUse P = VI generally and P = I²R or V²/R for a resistive component with consistent instantaneous or steady quantities.
Prove your understanding
Practice and repair
Key ideas and reference
Use these Currents checkpoints to choose the objective cluster that needs attention.
- A reviewed 8867 repair guide for Currents.
- Current is charge flow rate and I = nAvq relates microscopic carrier drift to the macroscopic current.
- Both are energy per unit charge: e.m.f. describes energy supplied and p.d. describes energy transferred from electrical stores.
- Use P = VI generally and P = I²R or V²/R for a resistive component with consistent instantaneous or steady quantities.
Course coverage and review details
Restricted to 8867 topic 8(a)–(d), PDF page 16; H2-only depth and omitted H2 topics do not contribute to this profile.
Recorded selected-response work supports formative repair. It does not by itself prove constructed, diagrammatic or practical performance.
Reviewed 2026-08-01