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Electric Circuit Flow

Closed loop from battery through load — current path you can draw and troubleshoot.

Current flows in a closed path through components.

Content quality

Content quality

School-readyReview approvedLower secondaryTechnical safetyOriginal content
Quality
School-ready
Review
Review approved
Age suitability
Lower secondary
Safety
Technical safety
License
Original content

Simplified educational model. For learning and practice only — not professional-grade medical, engineering, or electrical documentation.

Vocational safety: Practice the diagram only. Real wiring and live circuits require trained supervision.

Last reviewed: 5/1/2026 · Next: Review before embedding external OER figures.

  • Simplified educational model. For learning and practice only — not professional-grade medical, engineering, or electrical documentation.
  • Practice the diagram only. Real wiring and live circuits require trained supervision.

Curriculum alignment

Aligned for classroom support — not official national syllabus certification.

Cameroon · O Level · Physics · Circuit diagrams · GCE O Level

  • Cameroon · Anglophone / Francophone schools

    O Level · Physics · Circuit diagrams · GCE O Level

    Mapped to common school topics — aligned for classroom support, not official syllabus certification.

  • International · General STEM

    O Level · Physics · Circuit diagrams

    Global STEM foundation support for diagrams and practice.

Electric circuit — closed loopBatteryBulbSwitchCurrent flows when the loop is closed

What you will understand

Current flows in a closed path through components.

What you will draw

Rectangle circuit with standard symbols.

What you will write

V = I × R and symbol names.

Where you will use it

Lights, chargers, and workshop tools.

Key vocabulary
  • Battery
  • Wire
  • Bulb
  • Switch
  • Current
Flow stages
  1. 1

    Source

    Battery symbol.

  2. 2

    Load

    Bulb or resistor.

  3. 3

    Return path

    Wire back to battery.

Drawing steps

Drawing steps

  1. Battery
  2. Wires in rectangle
  3. Bulb on side
  4. Switch optional
  5. Current arrows
Application

Formulas

  • V = I × R

Flow

  • Battery → wire → load → wire → battery

Real-life application

  • Why does a bulb go out when the switch opens?
Common mistakes

Common mistakes to avoid

  • Open loop
  • Wrong symbol polarity
Structured diagramFlow explainedFormula supportTeacher-readyVocational application
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