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Grade: 11
What is the difference between emf and voltage???????
one year ago

Answers : (3)

425 Points
Emf is potential difference generated at the two end of a source when no current is flowing.
Voltage is the difference of electrical potential between two points of an electric circuit while a current is flowing.
one year ago
yathartha gupta
71 Points
                 emf is the potential difference of entire circuit. I.e. internet resistance of battery is also consider while calculating the emf.
    emf is given by:-
                             E=I/(R+r)            where R is externel resistance , r is internet resistance of battery.
 Voltage is the potential difference between two terminals of battery. I.e. internet resistance of battery will not considered while calculating voltage.
        Voltage is given by:-
one year ago
G B Kunde
13 Points
Emf is the voltage of the cell it is present even when no current is flowing ,whereas every component of a circuit can have different voltages  .also voltage does not exist in any component if current is not flowing in the circuit . 
one year ago
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