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Science / Magnetic Effects of Electric Current

Science / Magnetic Effects of Electric Current

Magnetism was discovered about 4000 years back in ancient Greece.

Some items such as iron and nickel get attracted to magnets and are called magnetic materials. Items that do not get attracted to magnets are called non-magnetic materials.

Have you ever wondered why a magnet attracts certain materials and what is the range where its influence can be experienced? The region around a magnet where its influence is felt is called the magnetic field of the magnet. We cannot see the magnetic field, but it is represented by a set of curves around a magnet called magnetic field lines or magnetic lines of force.

Earth behaves like a huge magnet with its north pole near the geographic south pole and its south pole near geographic North pole. This is why a freely suspended magnet comes to rest in the North - South direction. The North pole of the suspended magnet is attracted by the south pole of earth's magnet, and hence points to the geographic north.

Revise the 4 basic properties of a bar magnet:

  • Directional property,
  • Attractive property,
  • Poles exist in pairs and
  • Like poles repel while opposite poles attract.

Understand the relationship between electricity and magnet and study the interesting phenomenon of electromagnetism. Understand Fleming's left and right hand rules and learn to apply them in different situations.

Exercises
Lessons
Topics
Exercises
Lessons
Topics
  • Magnetic Effects of Electric Current - SmartTest

    A SmartTest on Magnetic Effects of Electric Current

    • Accessed by: 341 Students
    • Average Time: 00:03:49
    • Average Score: 49.48
    • Questions: 70
    • Introduction to Magnetism & Electricity
    • Magnetic field and field lines
    • Magnetic field due to current carrying conductor
    • Magnetic Field due to a Current through a Straight conductor
    • The Right Hand Rule
    • Magnetic Field due to a Current through a Circular Loop
    • Force on a current carrying conductor in a magnetic field
    • What is Electromagnetic Induction
    • Direct and alternating current
    • Electric Generator
    • The Electric motor
    • Domestic electric circuits
    • Review of Magnetism & Electricity
    • Magnetic field due to a current in a solenoid
    • Electromagnet and Permanent magnet
  • Uniform and Non-uniform magnetic Field

    Learnhive Lesson on Uniform and Non-uniform magnetic Field

    • Accessed by: 109 Students

    Bar Magnet and Solenoid

    Learnhive Lesson on Bar Magnet and Solenoid

    Magnetic field due to Circular Coil

    Learnhive Lesson on Magnetic field due to Circular Coil

    Lens Law

    Learnhive Lesson on Lens Law

    Flemings Right Hand Rule

    Learnhive Lesson on Flemings Right Hand Rule

    Faradays Laws

    Learnhive Lesson on Faradays Laws

    Difference between AC and DC

    Learnhive Lesson on Difference between AC and DC

    Advantages of AC over DC

    Learnhive Lesson on Advantages of AC over DC

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