Home / Electrical Articles / The brief concept of EMF (Electromotive Force) The brief concept of EMF (Electromotive Force) Author: Ravi Barwad Category: Electrical Articles 14 Dec 14 EMF is short form of electromotive force. All the metals contain a large number of free electron which direction inside the metal piece. EMF – Electromotive force If battery or voltage source is connected across the metal piece as shown in figure then pre-electron will move in one particular direction. The electrical force or pressure that causes the electron to move in a particular direction is called as electromotive force i.e. EMF. Note that the negatively changed electrons get attracted towards the positive end of the battery. The unit of EMF is also called as voltage or potential difference. It is denoted by (v). Like1 Dislike1 Related Articles:Conduction of current through P type semiconductorConduction of current through N type semiconductorsConcept of back emf for dc motorWorking principle of DC generatorPrincipal of CRT (Cathode ray tube)Piezoelectric transducer Related Posts Comparison of Induction motor and DC motors by Technical Editor What is tariff structure? by Technical Editor One Response Rahul May 22, 2015 at 2:03 am what is the diffrant beetwen “emf & voltage diffrance” Reply Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Name:* Email:* Website : Save my name, email, and website in this browser for the next time I comment.