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SS3: PHYSICS - 2ND TERM

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  1. Magnetic Field | Week 1
    4 Topics
  2. Electromagnetic Field
    4 Topics
  3. Electromagnetic Induction
    6 Topics
  4. The Transformer
    5 Topics
  5. Simple A.C Circuit
    4 Topics
  6. Models of the Atom
    2 Topics
  7. Radioactivity
    3 Topics
  8. Half Life
    8 Topics
  9. Energy Quantization
    3 Topics
  10. Photoelectric Effect
    4 Topics
  11. Wave Particle Paradox
    3 Topics



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Lesson 3 of 11
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Electromagnetic Induction

Electromagnetic induction is the production of voltage in a conductor when there is relative motion between the conductor and the magnetic field.

When a solenoid is connected to a galvanometer as shown 

Screen Shot 2020 10 29 at 5.03.05 PM

If the North pole of a strong magnet is moved towards the coil, the galvanometer deflects for a short time to the right. The deflection shows that there is induced current or voltage in the coil.

If the South pole of the magnet is moved towards the coil, the galvanometer deflects to the left. When the magnet is stationary in the solenoid, no deflection takes place.

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