Fundamentals of DC Motor

Learn fundamental concept and mathematical representation of DC Shunt & DC Series Motor

Language: English

Instructor: Dr. Jignesh Makwana


₹̶6̶5̶0̶ ₹199


Ch 1: Introduction

1.1 Course Intro

Ch 2: Fundamental Concept of How DC Motor Works

2.1 Parameters of Electrical & Mechanical System

2.2 Representation of Electric Motor as Block Diagram

2.3 Force produced by Permanent Magnet

2.4 How electric current produces force?

2.5 Current Carrying Conductors Placed in Magnetic Field

2.6 Requirement of Arrangement to Produce Unidirectional Torque

2.7 How to Supply Electric Current to Rotating Coil

2.8 Maintaining Direction of Current with Commutator

2.9 Conclusion

Ch 3: Basic Parts of DC Motor

3.1 Basic Parts of DC Motor

Ch 4: Back emf & it’s importance

4.1: Role of Faraday’s law and Lenz’s law in DC Motor (Back emf)

Ch 5: Mathematical Representation

5.1: Speed Torque Equation

5.2: Graphical Representation

Ch 6: Speed Control Methods

6.1: Effect of Supply Voltage

6.2: Effect of Adding Resistance to Armature Winding

6.3: Effect of Adding Resistance to Field Winding

Ch 7: Summary

7.1: Summary

Ch 8: DC Series Motor

8.1: DC Series Motor

8.2: Speed Torque Characteristics of DC Series Motor

Ch 9: More about DC Motor

9.1: Introduction

9.2: Controversy Effect: “Effect of Field Flux on Motor Torque” 

9.3: Equation of Force

9.4: Shape and Equation of Back Emf

9.5: Average Value of Back Emf

9.6: Power Transfer

9.7: Shaft Torque

9.8: Applications & Limitations

9.9: Maximum Power Transfer Point

Ch 10: Demonstrations & Practice

10.1: PMDC Motors

Why this course?


Understand “How DC Motor works?” in most simplified way. Course is  designed to help students in understanding fundamental concept and  mathematical derivation. Content delivered here ensures learning new  prospective for students of schools & colleges. “Easy to understand”  and “Every bit to understand” are two basic blocks of this course.

Course Instructor

Dr. Jignesh Makwana received Phd degree in Electrical Engineering from Indian Institute of Technology Roorkee, in 2013. He is teaching power electronics, electric drives, control system & other subject in engineering colleges since last 15 years. He served as a associate professor and Head of Department, Electrical Engineering, faculty of technology at Marwadi University, Rajkot from 2013 to 2017. Currently He is providing consultancy service to many industries for product design and development related to electric drives and power electronics.

Ph.d, IIT Roorkee

Who this course is for?

  • This course will help 10+ students to understand working principle of DC Motor.

  • This course covers mathematical and scientific detail of DC motor to help engineering students of first year.

  • This course is suitable to all science and technology lovers who wanted to gain the fundamental knowledge about DC motor.

What you’ll learn:

  • You will learn fundamental concept of how dc motor works

  • You will learn mathematical and graphical representation of DC Motor

  • You will learn various speed control methods of DC Motors

  • You will learn DC Shunt and DC Series Motor

  • You will learn various parameters and terms related to DC Motor


  • Basic science (primary school level)

See what others have to say.....


"Very Good Course. Discussed all of the important concepts without going through unnecessary details"

- William Schwab


- Christine


- Alemseghed


- Ashish Dubey

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