About Magnetoresistance:
- What is it? It is the result of the electrical resistance of a conductor affected by magnetic fields in adjacent materials.
- Applications: It is used in hard disk drives and magneto resistive RAM in computers, biosensors, automotive sensors, microelectromechanical systems, and medical imagers etc.
Key facts about Graphene
- It is composed of monolayer of closely packed carbon atoms that form a hexagonal honeycomb lattice.
- It is the building-block of Graphite.
- It is the thinnest, most electrically and thermally conductive material in the world.
- It is also tremendously strong—about 200 times stronger than steel and flexible, as well as transparent.
- It is also known as a wonder material due to its vast potential in the energy and medical world.
Q1) What is Graphite?
Graphite is a naturally occurring mineral that is composed of carbon. It has a layered crystal structure and is the most stable form of carbon under normal conditions.
Source: What is magnetoresistance? It’s one more thing graphene does differently
Last updated on August, 2026
→ UPSC Mains 2026 commenced on 21st August 2026 and will continue through 30th August 2026, as per the official examination schedule.
→ UPSC Mains Question Paper 2026 is out now for Essay & GS Paper 1, 2, 3 & 4.
→ UPSC Mains GS Paper 1 2026 is out now.
→ UPSC Mains GS Paper 2 2026 is out now.
→ UPSC Mains GS Paper 3 2026 is out now.
→ UPSC Mains GS Paper 4 2026 is out now.
→ Check out the latest UPSC Syllabus 2026 here.
→ UPSC Mains Admit Card 2026 is now out.
→ Enroll in Vajiram & Ravi’s UPSC Mains Test Series 2027 for structured answer writing practice, expert evaluation, and exam-oriented feedback.
→ Join Vajiram & Ravi’s UPSC Mentorship Program 2027 for personalized guidance, strategy planning, and one-to-one support from experienced mentors.
→ Go through the UPSC Mains Previous Year Papers to enhance your preparation.
→ Download UPSC Mains Essay Paper 2025, UPSC Mains GS Paper-I 2025, UPSC Mains GS Paper-II 2025, UPSC Mains GS Paper-III 2025, UPSC Mains GS Paper-IV 2025, UPSC Mains English (Compulsory) Paper 2025, UPSC Mains Hindi (Qualifying) Paper 2025 here.
→ UPSC has released UPSC Toppers List 2025 with the Civil Services final result on its official website.
→ UPSC Calendar 2027 has been released.
→ Also check Best UPSC Coaching in India







