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Welcome to eGyanKosh’s dedicated page for Unit-4: Principles of Logic Circuits-II, part of the study material for IGNOU’s 2025 curriculum. This resource offers a comprehensive exploration of advanced concepts in logic circuits, essential for students pursuing their studies in electronics and electrical engineering. Whether you’re preparing for exams or enhancing your understanding of complex logic systems, our free downloadable materials are designed to support your learning journey. Dive into the intricacies of logic design, circuit analysis, and implementation techniques, and empower yourself with knowledge that lays the foundation for your future studies and professional endeavors.