Question

give two difference between EMF and potential difference​

Answer 1

EMF(Electro motive force):

+Work done by a source in taking a unit charge once around complete circuit.

+EMF exists even when ckt is open

+ EMF is independent of external resistance

+ EMF transforms energy from non electrical form to electrical form

P.D(Potential difference):

+ Work done in moving a charge from one point to another point.

+ P.D. exists only when ckt is closed

+ P.D depends on resistance b/w 2 points & current flowing through it

+ P.D is the actual output voltage across battery.

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Answer 2

Explanation:

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