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Welcome to eGyanKosh’s Unit-9 on Electrical Materials, a comprehensive resource designed for students of IGNOU in 2025. This unit delves into the fundamental concepts, properties, and applications of electrical materials, providing a solid foundation for understanding their role in electrical engineering and technology. Whether you are preparing for your exams or seeking to enhance your knowledge in the field, this study material offers valuable insights and information. Best of all, it’s available for free download, ensuring that you have easy access to the resources you need for academic success. Join us as we explore the essential topics that will empower your learning journey in electrical engineering!