Virtual magnet claims reveal why EVs need their rare-earth magnets

📌 Summary:

• Recent reports feature a Bengaluru startup, Vimag Labs, that claims to have replaced rare-earth permanent magnets in electric-vehicle motors with so-called "virtual" magnets
• Per its CEO Manish Seth, the design removes permanent magnets, replaces them with copper coils, and uses software to generate magnetic fields inside the motor
• The article examines why EVs conventionally rely on rare-earth permanent magnets: they deliver high magnetic strength, compactness and efficiency (high power/torque density) that are hard to match
• Strategic angle: rare-earth magnets (e.g., neodymium) are supply-constrained and dominated by China, making alternatives and domestic capability a technology-security priority for India's EV push

🎯 UPSC Relevance: GS3 Science & Technology — critical/rare-earth minerals, EV technology and supply-chain security, indigenous R&D and material science.

📝 Prelims Facts:

• Rare-earth permanent magnets (such as neodymium-iron-boron) are widely used in EV traction motors for high efficiency
• Vimag Labs is a Bengaluru-based startup; CEO: Manish Seth
• "Virtual magnet" approach: copper coils plus software-generated magnetic fields in place of permanent magnets

🔑 Key Term: Rare-earth permanent magnet — a strong permanent magnet (e.g., NdFeB) made using rare-earth elements, valued for high magnetic strength per unit volume in motors and generators.