A permanent magnet has a constant magnetic field and does not require electricity. An electromagnet, however, needs an electric current to generate its magnetic field, and its strength can be controlled.
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A permanent magnet has a constant magnetic field and does not require electricity. An electromagnet, however, needs an electric current to generate its magnetic field, and its strength can be controlled.
A permanent magnet generates a consistent magnetic field without needing an external power source, retaining its magnetism over time. In contrast, an electromagnet requires an electric current to produce a magnetic field, which only exists as long as the current flows. The strength of an electromagnet’s magnetic field can be adjusted by changing the current, making it versatile for various uses, while a permanent magnet’s strength is fixed.
For more CBSE Class 6 Science Curiosity Chapter 4 Exploring Magnets Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions-class-6-science-curiosity-chapter-4/