Lesson Plan

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Lesson Plan
Grade: Date: 17/01/2026
Subject: Physics
Lesson Topic: State and use the relative directions of force, field and induced current
Learning Objective/s:
  • Describe the relationship between magnetic field, conductor motion, induced emf, and induced current direction.
  • Apply Fleming’s right‑hand rule and Lenz’s law to determine the direction of induced current in various scenarios.
  • Use Fleming’s left‑hand rule to predict the direction of magnetic force on a current‑carrying conductor.
  • Calculate the magnitude of induced emf using \( \mathcal{E}=B\,l\,v\sin\theta \) and interpret its significance.
Materials Needed:
  • Projector or interactive whiteboard
  • Printed worksheets with diagrams of conductors in magnetic fields
  • Bar magnets and iron filings for demonstration
  • Conducting rods or copper strips and a power supply for hands‑on activity
  • Rulers and stopwatches
  • Fleming’s right‑hand and left‑hand rule handouts
 Introduction:
Begin with a quick demonstration of a magnet and a moving rod to spark curiosity. Review prior knowledge of magnetic fields and Faraday’s law. Explain that today’s success criteria are to correctly apply right‑hand and left‑hand rules and to justify directions using Lenz’s law.
Lesson Structure:
  1. Do‑now (5’) – Students answer a short question on magnetic‑field direction from a diagram.
  2. Mini‑lecture (10’) – Review Faraday’s law and introduce Fleming’s right‑hand rule with visual aids.
  3. Guided practice (12’) – Work through the step‑by‑step procedure using the worked example on the board.
  4. Hands‑on activity (15’) – Groups use magnets, rods, and rulers to predict and test induced‑current direction, recording observations.
  5. Apply left‑hand rule (8’) – Determine magnetic force on the moving rod; discuss Lenz’s‑law verification.
  6. Quick check (5’) – Exit ticket: write the current and force directions for a new scenario.
  7. Summary & homework (5’) – Recap key rules and assign the three practice questions.
Conclusion:
Summarise how the three hand rules interrelate and why Lenz’s law is essential for checking answers. Students complete an exit ticket stating the current and force directions for a given situation. For homework, they finish the three practice questions and bring a sketch of a generator coil.