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 allowable limit Of stray light for a spectrophotometer laboratory instruments ?

986


what is the difference between elctrefining and electrolysis?

1743


what kind of question can be asked in interview for UV- VISIBLE & give me answer ?

3383


Sr-90, a radioactive isotope, is a major product of an atomic bomb explosion. It has a half life of 28.1 year. Calculate the first order rate constant for this nuclear decay and the fraction of 90Sr that remains after 10 half lives?

5719


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]?

4512






How to accelerate electron capture decay?

1853


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.

2549


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

2437


what kind of question can be asked in interview for polarimeter related ?

4728


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)

2162


WHAT IS THE SYLLABUS OO GROUP -I?

1726


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

2010


What can be the supporter of combustion except oxygen.

2350


why athanol-water mixtuere have maximum viscocity in wt% 40?

1269


What is the brigg's raucher reaction?

1841