Learning Materials

Working or Operating Principle of DC Motor

Motor Principle:

An Electric motor is a machine which converts electric energy into mechanical energy. Its action is based on the principle that when a current-carrying conductor is placed in a magnetic field, it experiences a mechanical force whose direction is given by Fleming’s Left-hand Rule and whose magnitude is given by F = BIl Newton.

Constructionally, there is no basic difference between a d.c. generator and a d.c. motor. In fact, the same d.c. machine can be used interchangeably as a generator or as a motor. D.C. motors are also like generators, shunt-wound or series-wound or compound-wound.

How to prepare an effective business message

Effective Business Message

5 Planning Steps

Three Phase Induction Motor and its working Principle

Introduction

As a general rule, conversion of electrical power into mechanical power takes place in the rotating part of an electric motor. In d.c. motors, the electric power is conducted directly to the armature (i.e. rotating part) through brushes and commutator. Hence, in this sense, a d.c. motor can be called a conduction motor. However, in a.c. motors, the rotor does not receive electric power by conduction but by induction in exactly the same way as the secondary of a 2-winding transformer receives its power from the primary.

How to add extra social sharing buttons in blogger:

In this post i will teach you how you can add extra sharing buttons in blogger like Facebook like button, Tumbler button, Twitter button, Google plus button, Pinetrus button, stumble-upon button, Linked in button. easily in your blog.Just follow the steps given below to add these buttons in you blog post.

Free Download point,Watch Movies , Watch Movies Online,Earn Money