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What is electro-motive force (emf) or voltage and potential difference (P.D)?

EMF - It is the pressure that moves the electrons to flow in any conductor. It is also known as electromotive force voltage. Its symbol is ‘E’ or ‘V’ and measuring unit is volt

measured by voltmeter.

P.D - The difference of potential between two points in a circuit is the voltage required to drive the current between them or the voltage drop between those two points is

called the potential difference.

P.D = R * I volts.

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Question added by sandip dobariya , substation engineer , Reliance jio infocomm ltd, Reliance corporate park
Date Posted: 2015/12/15
laid hamli
by laid hamli , Certificat d’État Cadre etudes techniques (Maint) , Sonatrach des Hydrocarbures

la force electromotrice (f,e,m) est un des parametres caracteristique d'un generateur electrique elle est,contrairement a ce qu'indique son nom, homogene a une tension et s'exprime en volts. dans un circuit electrique, pour mettre en mouvement des charges . il est necessaire de fournire du travail, et la force.

Muhammad ihtasham Anwar
by Muhammad ihtasham Anwar , Sr.Supervisor , Sapphire finishing mill

A IS STAND FOR QUALITY ASSUARANCE , QC STAND FOR QUALITY CONTROLLING,QA IS PROCESS ORIENTED , WHILE QC IS PRODUCT ORIENTED.

farah ahmad
by farah ahmad , Financial admistrative , Najdeh Association

Electromotive force is the electric current produced by any advice.

Muhammad Shan Muhammad Shan Buriro
by Muhammad Shan Muhammad Shan Buriro , TRAINEE ENGINEER , HSM NAWABSHAH

Electromotive force, also called emf (denoted E and measured in volts), is the voltage developed by any source of electrical energy such as a battery or dynamo

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