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1 week, 6 days ago

what is releation between emf and p.d ,from chapter current electricity

sir,what is releation between  emf and p.d ,from chapter current electricity, plz explain me those releation
Answers (3)
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A Avinash Dongre
Answered 1 week, 6 days ago

@Nilesh 

The potential difference accross the terminals of a cell when it is not supplying any current is called e.m.f while 

The voltage accross the terminals of a cell when it is supplying current to external resistance is known as Potential Difference .

When the cell is being charged

E=V-iR

(E<V)  

 

 

 

 

S sudhir
Answered 1 week, 6 days ago

@Nilesh

ε is, actually, a potential difference between two electrodes when current is not flowing.

P.D-potential difference is voltage across external resistance of load when current is flowing. 

A Avinash Dongre
Answered 1 week, 6 days ago

@Nilesh EMF, electromotive force, refers to the voltage developed by an electrical source. Potential difference refers to the observed difference in voltage between any two points in an open circuit.

 

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