Notes and Study material for Exams
Magnetic Keepers A magnet keeper, also known historically as an armature, is a ferromagnetic bar made from soft iron or steel, which is placed across the poles of a permanent magnet to help preserve the strength of the magnet by completing the magnetic circuit; it is important for magnets that have a low magnetic coercivity, … Read more
The Cosmic Dance: Formation of Planets The vast expanse of the cosmos, teeming with celestial objects, holds a captivating mystery: the origin of planets. These celestial bodies, ranging from rocky worlds to gas giants, are not merely random agglomerations of matter. They are intricate systems, sculpted by gravity, collisions, and the relentless forces of the … Read more
The formation and evolution of Earth’s AtmosphereAtmosphere is a complex topic with many different theories and hypotheses. Some of the most important subtopics include: The origin of the atmosphere: How did the atmosphere form in the first place? The Composition of the Atmosphere: What gases are in the atmosphere and how have they changed over … Read more