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SS3: PHYSICS - 2ND TERM

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

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SS3: PHYSICS – 2ND TERM Magnetic Field Methods of Making Magnets
Lesson 1, Topic 5
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Methods of Making Magnets

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Topic Content:

  • Electrical Method
  • Contact Method or Stroke Method
    • Single Touch/Stroke
    • Divided Touch/Stroke

Electrical Method:

A steel bar or iron bar is placed inside a solenoid as shown below:

Methods of Making Magnets 2

The bar will be magnetised when a direct current flows through the coil for a few seconds.

The polarity of the magnet depends on the direction of flow of current in the solenoid; if the current flows in an anticlockwise direction, the end of the specimen is the North Pole, but if the current flow is in a 

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Chike Amadi
Chike Amadi
16/02/2023 11:15 AM

Thank you

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