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Chapter 21: Simple Phenomena of Magnetism (16 videos)  (Practice Test)
21.1: Materials and Magnets  (Practice Test)
  1. The Discovery of Magnetisum
  2. Properties of Magnets
  3. Testing a Magnet
21.2: Magnetic Induction
  1. Induced Magnetism
21.3: Theory of Magnetism
  1. Theory of Magnetism
21.4: Methods of Magnetisation and Demagnetisation  (Practice Test)
  1. Single Touch Method
  2. Electrical Method
  3. Demagnetization
21.5: Magnetic Fields and the Plotting Compass  (Practice Test)
  1. Demagnetization
  2. The Earth's magnetic field
21.6: Magnetic Properties of Iron and Steel
  1. Magnetic Properties of Iron and Steel
21.7: Some Uses of Permanent Magnets and Electromagnets  (Practice Test)
  1. Permanent magnets
  2. Electromagnets
21.8: Magnetic Effect of a Current  (Practice Test)
  1. Magnetic Effects of Steady Current
  2. Magnetic Field of a Solenoid
  3. Applications of Electromagnet

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