TNPSC Trade Electrician 2026 | DC Machines – Complete Revision | Unit 6 | Code 438 | Repeated PYQs

⚡ TNPSC 2026 – Trade Electrician (ITI) | Code 438 📘 Unit 6: DC Machines – 30 Questions 🎯 COMPLETE REVISION | Concepts, Examples & Repeated PYQs Welcome to Learners Forum! In this session, we cover the important concepts of DC Machines through a complete revision, exam-oriented examples and repeated previous-year questions. 📚 Topics Covered: ✅ Working principle of DC generators and motors ✅ Construction and parts of DC machines ✅ Types of DC generators ✅ EMF equation of DC generators ✅ Types of DC motors ✅ Back EMF and torque equation ✅ Characteristics of DC generators and motors ✅ Losses and efficiency ✅ Speed control methods of DC motors ✅ Applications of DC machines ✅ Important formulas and numerical problems ✅ Repeated PYQs with detailed explanations 🎯 Useful for: TNPSC Trade Electrician – ITI 2026 Examination Code 438 Unit 6 – DC Machines (30 Questions) ITI Electrician competitive examination preparation 💡 Revise important concepts, understand the working principles, practise numerical problems and strengthen your technical preparation! 👍 Like, share and subscribe to Learners Forum for more TNPSC technical classes, complete revision sessions and PYQ discussions. 🔔 Follow our upcoming lessons for continued exam preparation. Dream | Prepare | Achieve 📌 Learners Forum – Your Learning Partner for a Brighter Future #TNPSC2026 #TradeElectrician #Code438 #DCMachines #DCGenerator #DCMotor #CompleteRevision #TNPSCPYQs #ITIElectrician #learnersforum