What is the difference between EMF and Voltage?

Answer Posted / soumya

EMF is the potential difference between two electrodes when current does not even starts to flow. Once the circuit is closed, it can never be called EMF. The native potential difference between two electrodes then are called voltage. In general voltage is little low than EMF of a circuit.

Is This Answer Correct ?    12 Yes 8 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

WHAT IS THE SYLLABUS OO GROUP -I?

1717


Normally entropy is expressed as q/T. But, work and heat have same unit. Why can't it be replaced by work?

1776


The use of vermilion on rubric of the Tartar Relation is confirmed by the presence of three lines attributed to HgS. Why should this diatomic have more than one vibrational line?

2177


a sample of gas occupies a volume of {450.0 ml}at {740 mm Hg}and[16C]determine the volume of this same sample at [760 mm Hg]and [37c]?

4506


what is the difference between elctrefining and electrolysis?

1741






4 Identify the substance oxidized, reduced, oxidizing agent and reducing agent for the following reactions

2007


what are UV rays absorbs slightly?

1635


During Soundness testing of Cement by Lechatelier method the Cement mould expands about 20 mm when merged in curing water for 24 hours after mould preparation.In that Cement MgO content is about 3.0%,SO3 is about 2.6% & Blaine is about 360 M2/Kg.Guess the reason & suggest solution.

2541


what is induction on electrical insulators

1848


What is the requirement to give RFlow when using RID detector?

2588


The rate constant for the second order reaction is 0.54/M.s at 300oC. How long (in sec) would it take for the concentration of NO2 to decrease from 0.62M to 0.28 M? 2NO2(g) 2 NO(g) + O2(g)

2157


Find out how to make artifacts the maxwell boltzmann theory of gases . ps. I don't speak English that well

991


what is allowable limit Of stray light for a spectrophotometer laboratory instruments ?

982


How can be set a responds factor for evaluating a unknown impurity by HPLC

1922


Write the each half cell reaction and also net cell reaction for a cell

2436