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Magnetic Effect of Electric Current — Syllabus

NIOS · Class 10 · Science & Tech

What Magnetic Effect of Electric Current covers in NIOS Class 10 Science & Tech: 4 topics, for the 2026-27 session.

43 questions40 flashcards5 concepts

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An illustration showing various common shapes of artificial magnets like bar magnet, horseshoe magnet, cylindrical magnet, circular magnet, and rectangular magnet.
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4 Topics · NIOS Class 10 Science & Tech · 2026-27

Topics in Magnetic Effect of Electric Current

1

1. Magnets and Their Properties

  • Lodestone is a natural magnet discovered by ancient Greeks.
  • Lodestone attracts iron and nickel and is an oxide of iron, Fe3O4.
  • Magnetism is the property of attraction of iron particles towards lodestone.
2

2. Current-Carrying Conductor as a Magnet

  • When electric current flows through a conductor, a magnetic field is produced around it.
  • The effect was first observed by H.C. Oersted in 1820.
  • If current in the wire is increased, the deflection of the magnetic needle increases.
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3. Electromagnet and Solenoid

  • A solenoid is a long thin coil of copper wire wound on a cylindrical form.
  • When current flows through a solenoid, it behaves like a bar magnet.
  • Placing soft iron inside the core of a solenoid increases the magnetic field and forms an electromagnet.
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4. Electric Bell

  • An electric bell uses a U-shaped, horse shoe electromagnet with a soft iron core.
  • The bell also has an armature, hammer, gong, push button, and contact screw.
  • When the push button is pressed, current flows through the coil.

Key Concepts

Central concept: Magnetic Effect of Electric Current

Magnet and magnetismMagnetic fieldCurrent carrying conductorElectromagnetElectric bellForce on current carrying conductorFleming's left hand ruleElectromagnetic induction

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Frequently Asked Questions

What are the important topics in Magnetic Effect of Electric Current for NIOS Class 10 Science & Tech?
Key topics in Magnetic Effect of Electric Current include Magnets and Their Properties, Current-Carrying Conductor as a Magnet, Electromagnet and Solenoid, Electric Bell. Study these first, then practise questions on each for the NIOS Class 10 board exam.
How should I revise Magnetic Effect of Electric Current for the NIOS Class 10 board exam?
Learn the core ideas first, then work through the 43 practice questions on Magnetic Effect of Electric Current. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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