12. TNPSC Trade Electrician 2026 | Logic Gates | Code 438 | Electronics | Concepts + Repeated PYQs

⚡ TNPSC 2026 – Trade Electrician (ITI) | Code 438 📘 Unit 9: Electronics – 30 Questions 🎯 Topic 12: Logic Gates | Concepts, Examples & Repeated PYQs Welcome to Learners Forum! Learn digital logic gates from the basics with clear explanations, truth tables, solved examples and exam-oriented previous-year questions. 📚 Topics Covered: ✅ AND, OR and NOT gates ✅ NAND and NOR gates ✅ XOR and XNOR gates ✅ Logic gate symbols and Boolean expressions ✅ Truth tables for all basic gates ✅ Universal gates – NAND and NOR ✅ Logic gate applications and examples ✅ Repeated PYQs and exam-oriented practice questions 🎯 Useful for: • TNPSC Trade Electrician – ITI 2026 • Examination Code 438 • Unit 9 – Electronics (30 Questions) • ITI Electrician competitive exam preparation 💡 Understand the truth tables, practise the concepts and strengthen your electronics fundamentals for the examination. 👍 Like, share and subscribe to Learners Forum for more TNPSC technical classes, electronics concepts and previous-year question practice. 🔔 Follow the upcoming lessons in our Electronics series! Dream | Prepare | Achieve 📌 Learners Forum – Your Learning Partner for a Brighter Future #TNPSC2026 #Code438 #TradeElectrician #LogicGates #DigitalElectronics #Electronics #RepeatedPYQs #ITIElectrician #learnersforum